Recursive function Chrome Bookmarks loop & appending











up vote
1
down vote

favorite












I'm trying to loop trough the chrome bookmarks and get all folders by using recursive function. I'm able to log all folders correctly so _.each and if folder works fine but struggling to correctly append <ul><li>



The object chrome.bookmarks.getSubTree ASYNC:



http://www.mocky.io/v2/5be950062e00006700f144d6






[
{
"children": [
{
"children": [
{
"dateAdded": 1509653754344,
"id": "459",
"index": 18,
"parentId": "1",
"title": "Test 1",
"url": "https://www.test1.net/"
},
{
"dateAdded": 1509653754369,
"id": "460",
"index": 19,
"parentId": "1",
"title": "Test 2",
"url": "https://www.test2.net/"
}
],
"dateAdded": 1529656829217,
"dateGroupModified": 1538037498559,
"id": "1",
"index": 0,
"parentId": "0",
"title": "Bookmarks Bar"
},
{
"children": [
{
"children": [
{
"children": [
{
"children": ,
"dateAdded": 1542016268115,
"dateGroupModified": 1542016268115,
"id": "496",
"index": 0,
"parentId": "492",
"title": "F40"
},
{
"children": ,
"dateAdded": 1542016288842,
"dateGroupModified": 1542016288842,
"id": "497",
"index": 1,
"parentId": "492",
"title": "Testarossa"
}
],
"dateAdded": 1542016224744,
"dateGroupModified": 1542016288843,
"id": "492",
"index": 0,
"parentId": "489",
"title": "Ferrari"
},
{
"children": ,
"dateAdded": 1542016232765,
"dateGroupModified": 1542016232765,
"id": "493",
"index": 1,
"parentId": "489",
"title": "Toyota"
},
{
"children": ,
"dateAdded": 1542016245690,
"dateGroupModified": 1542016245690,
"id": "494",
"index": 2,
"parentId": "489",
"title": "BMW"
},
{
"children": ,
"dateAdded": 1542016253590,
"dateGroupModified": 1542016253590,
"id": "495",
"index": 3,
"parentId": "489",
"title": "Audi"
}
],
"dateAdded": 1542016199154,
"dateGroupModified": 1542016253590,
"id": "489",
"index": 0,
"parentId": "2",
"title": "Cars"
},
{
"children": [
{
"children": ,
"dateAdded": 1542016326727,
"dateGroupModified": 1542016326727,
"id": "498",
"index": 0,
"parentId": "490",
"title": "Boeing"
},
{
"children": ,
"dateAdded": 1542016335148,
"dateGroupModified": 1542016335148,
"id": "499",
"index": 1,
"parentId": "490",
"title": "Airbus"
}
],
"dateAdded": 1542016208019,
"dateGroupModified": 1542016335149,
"id": "490",
"index": 1,
"parentId": "2",
"title": "Planes"
},
{
"children": ,
"dateAdded": 1542016213955,
"dateGroupModified": 1542016213955,
"id": "491",
"index": 2,
"parentId": "2",
"title": "Ships"
}
],
"dateAdded": 1529656829217,
"dateGroupModified": 1542016213955,
"id": "2",
"index": 1,
"parentId": "0",
"title": "Other Bookmarks"
}
],
"dateAdded": 1541543894421,
"id": "0",
"title": ""
}
]





Here is my function, at the beginning getFolders gets the very top level ID eg. 2:



const getFolders = (bmkNode) => {
const props = {
menuContainerId: $('#bookmarks')
}

const getTree = (element, bmkNode) => {
const ul = $('<ul data-node="' + bmkNode + '"></ul>')
let li

chrome.bookmarks.getSubTree(bmkNode, (folder) => {
_.map(folder[0].children, (item) => {

if (item.url === undefined || item.url === null) {

li = $('<li data-node="' + item.id + '">' + item.title + '</li>')
ul = $('<ul data-node="' + item.parentId + '"></ul>') //v1
ul.append(li)

if (_.size(item.children) > 0) {

getTree(ul, item.id)

}

element.append(ul)

}

})
})

}

getTree(props.menuContainerId, bmkNode)

}

getFolders('0')


My current output:



<div id="bookmarks">
<ul data-node="0">
<li data-node="1">Bookmarks Bar</li>
</ul>
<ul data-node="0">
<li data-node="2">Other Bookmarks</li>
<ul data-node="2">
<li data-node="489">Cars</li>
<ul data-node="489">
<li data-node="492">Ferrari</li>
<ul data-node="492">
<li data-node="496">F40</li>
</ul>
<ul data-node="492">
<li data-node="497">Testarossa</li>
</ul>
</ul>
<ul data-node="489">
<li data-node="493">Toyota</li>
</ul>
<ul data-node="489">
<li data-node="494">BMW</li>
</ul>
<ul data-node="489">
<li data-node="495">Audi</li>
</ul>
</ul>
<ul data-node="2">
<li data-node="490">Planes</li>
<ul data-node="490">
<li data-node="498">Boeing</li>
</ul>
<ul data-node="490">
<li data-node="499">Airbus</li>
</ul>
</ul>
<ul data-node="2">
<li data-node="491">Ships</li>
</ul>
</ul>
</div>


My desire output:



 <div id="bookmarks">
<ul>
<li>Bookmarks Bar</li>
<li>Other Bookmarks</li>
<ul>
<li>Cars
<li>Ferrari
<ul>
<li>F40</li>
<li>Testarossa</li>
</ul>
</li>
<li>Toyota</li>
<li>BMW</li>
<li>Audi</li>
</li>
<li>Planes</li>
<li>Ships</li>
<ul>

</ul>
<ul>
<li>Boeing</li>
<li>Airbus</li>
</ul>
</ul>
</ul>
</div>









share|improve this question
























  • Do not use _.each. It does not work with asynchronous code. _.map them to an array of promises and use Promise.all.
    – Bergi
    Nov 12 at 8:24










  • Promisify only the chrome.bookmarks.getSubTree(bmkNode) function, put nothing else into the new Promise constructor. Then use .then() chaining to work with the result values
    – Bergi
    Nov 12 at 8:26










  • @Bergi I thought we are using _.map when we are expecting to return something? There is no return here..? Could you suggest the function changes below? Thanks
    – Ben
    Nov 12 at 9:05












  • Try to find something useful that could be returned (hint: don't use a global folderItem variable). And since the recursive getTrees call is asynchronous, you will need to return a promise for this thing. Then you will have an array of promises in the end, which is something that Promise.all can work with.
    – Bergi
    Nov 12 at 9:12










  • @Bergi I've edited my example so there is no need for promise also added actual object. Tell me what you think? Thanks
    – Ben
    Nov 12 at 10:47















up vote
1
down vote

favorite












I'm trying to loop trough the chrome bookmarks and get all folders by using recursive function. I'm able to log all folders correctly so _.each and if folder works fine but struggling to correctly append <ul><li>



The object chrome.bookmarks.getSubTree ASYNC:



http://www.mocky.io/v2/5be950062e00006700f144d6






[
{
"children": [
{
"children": [
{
"dateAdded": 1509653754344,
"id": "459",
"index": 18,
"parentId": "1",
"title": "Test 1",
"url": "https://www.test1.net/"
},
{
"dateAdded": 1509653754369,
"id": "460",
"index": 19,
"parentId": "1",
"title": "Test 2",
"url": "https://www.test2.net/"
}
],
"dateAdded": 1529656829217,
"dateGroupModified": 1538037498559,
"id": "1",
"index": 0,
"parentId": "0",
"title": "Bookmarks Bar"
},
{
"children": [
{
"children": [
{
"children": [
{
"children": ,
"dateAdded": 1542016268115,
"dateGroupModified": 1542016268115,
"id": "496",
"index": 0,
"parentId": "492",
"title": "F40"
},
{
"children": ,
"dateAdded": 1542016288842,
"dateGroupModified": 1542016288842,
"id": "497",
"index": 1,
"parentId": "492",
"title": "Testarossa"
}
],
"dateAdded": 1542016224744,
"dateGroupModified": 1542016288843,
"id": "492",
"index": 0,
"parentId": "489",
"title": "Ferrari"
},
{
"children": ,
"dateAdded": 1542016232765,
"dateGroupModified": 1542016232765,
"id": "493",
"index": 1,
"parentId": "489",
"title": "Toyota"
},
{
"children": ,
"dateAdded": 1542016245690,
"dateGroupModified": 1542016245690,
"id": "494",
"index": 2,
"parentId": "489",
"title": "BMW"
},
{
"children": ,
"dateAdded": 1542016253590,
"dateGroupModified": 1542016253590,
"id": "495",
"index": 3,
"parentId": "489",
"title": "Audi"
}
],
"dateAdded": 1542016199154,
"dateGroupModified": 1542016253590,
"id": "489",
"index": 0,
"parentId": "2",
"title": "Cars"
},
{
"children": [
{
"children": ,
"dateAdded": 1542016326727,
"dateGroupModified": 1542016326727,
"id": "498",
"index": 0,
"parentId": "490",
"title": "Boeing"
},
{
"children": ,
"dateAdded": 1542016335148,
"dateGroupModified": 1542016335148,
"id": "499",
"index": 1,
"parentId": "490",
"title": "Airbus"
}
],
"dateAdded": 1542016208019,
"dateGroupModified": 1542016335149,
"id": "490",
"index": 1,
"parentId": "2",
"title": "Planes"
},
{
"children": ,
"dateAdded": 1542016213955,
"dateGroupModified": 1542016213955,
"id": "491",
"index": 2,
"parentId": "2",
"title": "Ships"
}
],
"dateAdded": 1529656829217,
"dateGroupModified": 1542016213955,
"id": "2",
"index": 1,
"parentId": "0",
"title": "Other Bookmarks"
}
],
"dateAdded": 1541543894421,
"id": "0",
"title": ""
}
]





Here is my function, at the beginning getFolders gets the very top level ID eg. 2:



const getFolders = (bmkNode) => {
const props = {
menuContainerId: $('#bookmarks')
}

const getTree = (element, bmkNode) => {
const ul = $('<ul data-node="' + bmkNode + '"></ul>')
let li

chrome.bookmarks.getSubTree(bmkNode, (folder) => {
_.map(folder[0].children, (item) => {

if (item.url === undefined || item.url === null) {

li = $('<li data-node="' + item.id + '">' + item.title + '</li>')
ul = $('<ul data-node="' + item.parentId + '"></ul>') //v1
ul.append(li)

if (_.size(item.children) > 0) {

getTree(ul, item.id)

}

element.append(ul)

}

})
})

}

getTree(props.menuContainerId, bmkNode)

}

getFolders('0')


My current output:



<div id="bookmarks">
<ul data-node="0">
<li data-node="1">Bookmarks Bar</li>
</ul>
<ul data-node="0">
<li data-node="2">Other Bookmarks</li>
<ul data-node="2">
<li data-node="489">Cars</li>
<ul data-node="489">
<li data-node="492">Ferrari</li>
<ul data-node="492">
<li data-node="496">F40</li>
</ul>
<ul data-node="492">
<li data-node="497">Testarossa</li>
</ul>
</ul>
<ul data-node="489">
<li data-node="493">Toyota</li>
</ul>
<ul data-node="489">
<li data-node="494">BMW</li>
</ul>
<ul data-node="489">
<li data-node="495">Audi</li>
</ul>
</ul>
<ul data-node="2">
<li data-node="490">Planes</li>
<ul data-node="490">
<li data-node="498">Boeing</li>
</ul>
<ul data-node="490">
<li data-node="499">Airbus</li>
</ul>
</ul>
<ul data-node="2">
<li data-node="491">Ships</li>
</ul>
</ul>
</div>


My desire output:



 <div id="bookmarks">
<ul>
<li>Bookmarks Bar</li>
<li>Other Bookmarks</li>
<ul>
<li>Cars
<li>Ferrari
<ul>
<li>F40</li>
<li>Testarossa</li>
</ul>
</li>
<li>Toyota</li>
<li>BMW</li>
<li>Audi</li>
</li>
<li>Planes</li>
<li>Ships</li>
<ul>

</ul>
<ul>
<li>Boeing</li>
<li>Airbus</li>
</ul>
</ul>
</ul>
</div>









share|improve this question
























  • Do not use _.each. It does not work with asynchronous code. _.map them to an array of promises and use Promise.all.
    – Bergi
    Nov 12 at 8:24










  • Promisify only the chrome.bookmarks.getSubTree(bmkNode) function, put nothing else into the new Promise constructor. Then use .then() chaining to work with the result values
    – Bergi
    Nov 12 at 8:26










  • @Bergi I thought we are using _.map when we are expecting to return something? There is no return here..? Could you suggest the function changes below? Thanks
    – Ben
    Nov 12 at 9:05












  • Try to find something useful that could be returned (hint: don't use a global folderItem variable). And since the recursive getTrees call is asynchronous, you will need to return a promise for this thing. Then you will have an array of promises in the end, which is something that Promise.all can work with.
    – Bergi
    Nov 12 at 9:12










  • @Bergi I've edited my example so there is no need for promise also added actual object. Tell me what you think? Thanks
    – Ben
    Nov 12 at 10:47













up vote
1
down vote

favorite









up vote
1
down vote

favorite











I'm trying to loop trough the chrome bookmarks and get all folders by using recursive function. I'm able to log all folders correctly so _.each and if folder works fine but struggling to correctly append <ul><li>



The object chrome.bookmarks.getSubTree ASYNC:



http://www.mocky.io/v2/5be950062e00006700f144d6






[
{
"children": [
{
"children": [
{
"dateAdded": 1509653754344,
"id": "459",
"index": 18,
"parentId": "1",
"title": "Test 1",
"url": "https://www.test1.net/"
},
{
"dateAdded": 1509653754369,
"id": "460",
"index": 19,
"parentId": "1",
"title": "Test 2",
"url": "https://www.test2.net/"
}
],
"dateAdded": 1529656829217,
"dateGroupModified": 1538037498559,
"id": "1",
"index": 0,
"parentId": "0",
"title": "Bookmarks Bar"
},
{
"children": [
{
"children": [
{
"children": [
{
"children": ,
"dateAdded": 1542016268115,
"dateGroupModified": 1542016268115,
"id": "496",
"index": 0,
"parentId": "492",
"title": "F40"
},
{
"children": ,
"dateAdded": 1542016288842,
"dateGroupModified": 1542016288842,
"id": "497",
"index": 1,
"parentId": "492",
"title": "Testarossa"
}
],
"dateAdded": 1542016224744,
"dateGroupModified": 1542016288843,
"id": "492",
"index": 0,
"parentId": "489",
"title": "Ferrari"
},
{
"children": ,
"dateAdded": 1542016232765,
"dateGroupModified": 1542016232765,
"id": "493",
"index": 1,
"parentId": "489",
"title": "Toyota"
},
{
"children": ,
"dateAdded": 1542016245690,
"dateGroupModified": 1542016245690,
"id": "494",
"index": 2,
"parentId": "489",
"title": "BMW"
},
{
"children": ,
"dateAdded": 1542016253590,
"dateGroupModified": 1542016253590,
"id": "495",
"index": 3,
"parentId": "489",
"title": "Audi"
}
],
"dateAdded": 1542016199154,
"dateGroupModified": 1542016253590,
"id": "489",
"index": 0,
"parentId": "2",
"title": "Cars"
},
{
"children": [
{
"children": ,
"dateAdded": 1542016326727,
"dateGroupModified": 1542016326727,
"id": "498",
"index": 0,
"parentId": "490",
"title": "Boeing"
},
{
"children": ,
"dateAdded": 1542016335148,
"dateGroupModified": 1542016335148,
"id": "499",
"index": 1,
"parentId": "490",
"title": "Airbus"
}
],
"dateAdded": 1542016208019,
"dateGroupModified": 1542016335149,
"id": "490",
"index": 1,
"parentId": "2",
"title": "Planes"
},
{
"children": ,
"dateAdded": 1542016213955,
"dateGroupModified": 1542016213955,
"id": "491",
"index": 2,
"parentId": "2",
"title": "Ships"
}
],
"dateAdded": 1529656829217,
"dateGroupModified": 1542016213955,
"id": "2",
"index": 1,
"parentId": "0",
"title": "Other Bookmarks"
}
],
"dateAdded": 1541543894421,
"id": "0",
"title": ""
}
]





Here is my function, at the beginning getFolders gets the very top level ID eg. 2:



const getFolders = (bmkNode) => {
const props = {
menuContainerId: $('#bookmarks')
}

const getTree = (element, bmkNode) => {
const ul = $('<ul data-node="' + bmkNode + '"></ul>')
let li

chrome.bookmarks.getSubTree(bmkNode, (folder) => {
_.map(folder[0].children, (item) => {

if (item.url === undefined || item.url === null) {

li = $('<li data-node="' + item.id + '">' + item.title + '</li>')
ul = $('<ul data-node="' + item.parentId + '"></ul>') //v1
ul.append(li)

if (_.size(item.children) > 0) {

getTree(ul, item.id)

}

element.append(ul)

}

})
})

}

getTree(props.menuContainerId, bmkNode)

}

getFolders('0')


My current output:



<div id="bookmarks">
<ul data-node="0">
<li data-node="1">Bookmarks Bar</li>
</ul>
<ul data-node="0">
<li data-node="2">Other Bookmarks</li>
<ul data-node="2">
<li data-node="489">Cars</li>
<ul data-node="489">
<li data-node="492">Ferrari</li>
<ul data-node="492">
<li data-node="496">F40</li>
</ul>
<ul data-node="492">
<li data-node="497">Testarossa</li>
</ul>
</ul>
<ul data-node="489">
<li data-node="493">Toyota</li>
</ul>
<ul data-node="489">
<li data-node="494">BMW</li>
</ul>
<ul data-node="489">
<li data-node="495">Audi</li>
</ul>
</ul>
<ul data-node="2">
<li data-node="490">Planes</li>
<ul data-node="490">
<li data-node="498">Boeing</li>
</ul>
<ul data-node="490">
<li data-node="499">Airbus</li>
</ul>
</ul>
<ul data-node="2">
<li data-node="491">Ships</li>
</ul>
</ul>
</div>


My desire output:



 <div id="bookmarks">
<ul>
<li>Bookmarks Bar</li>
<li>Other Bookmarks</li>
<ul>
<li>Cars
<li>Ferrari
<ul>
<li>F40</li>
<li>Testarossa</li>
</ul>
</li>
<li>Toyota</li>
<li>BMW</li>
<li>Audi</li>
</li>
<li>Planes</li>
<li>Ships</li>
<ul>

</ul>
<ul>
<li>Boeing</li>
<li>Airbus</li>
</ul>
</ul>
</ul>
</div>









share|improve this question















I'm trying to loop trough the chrome bookmarks and get all folders by using recursive function. I'm able to log all folders correctly so _.each and if folder works fine but struggling to correctly append <ul><li>



The object chrome.bookmarks.getSubTree ASYNC:



http://www.mocky.io/v2/5be950062e00006700f144d6






[
{
"children": [
{
"children": [
{
"dateAdded": 1509653754344,
"id": "459",
"index": 18,
"parentId": "1",
"title": "Test 1",
"url": "https://www.test1.net/"
},
{
"dateAdded": 1509653754369,
"id": "460",
"index": 19,
"parentId": "1",
"title": "Test 2",
"url": "https://www.test2.net/"
}
],
"dateAdded": 1529656829217,
"dateGroupModified": 1538037498559,
"id": "1",
"index": 0,
"parentId": "0",
"title": "Bookmarks Bar"
},
{
"children": [
{
"children": [
{
"children": [
{
"children": ,
"dateAdded": 1542016268115,
"dateGroupModified": 1542016268115,
"id": "496",
"index": 0,
"parentId": "492",
"title": "F40"
},
{
"children": ,
"dateAdded": 1542016288842,
"dateGroupModified": 1542016288842,
"id": "497",
"index": 1,
"parentId": "492",
"title": "Testarossa"
}
],
"dateAdded": 1542016224744,
"dateGroupModified": 1542016288843,
"id": "492",
"index": 0,
"parentId": "489",
"title": "Ferrari"
},
{
"children": ,
"dateAdded": 1542016232765,
"dateGroupModified": 1542016232765,
"id": "493",
"index": 1,
"parentId": "489",
"title": "Toyota"
},
{
"children": ,
"dateAdded": 1542016245690,
"dateGroupModified": 1542016245690,
"id": "494",
"index": 2,
"parentId": "489",
"title": "BMW"
},
{
"children": ,
"dateAdded": 1542016253590,
"dateGroupModified": 1542016253590,
"id": "495",
"index": 3,
"parentId": "489",
"title": "Audi"
}
],
"dateAdded": 1542016199154,
"dateGroupModified": 1542016253590,
"id": "489",
"index": 0,
"parentId": "2",
"title": "Cars"
},
{
"children": [
{
"children": ,
"dateAdded": 1542016326727,
"dateGroupModified": 1542016326727,
"id": "498",
"index": 0,
"parentId": "490",
"title": "Boeing"
},
{
"children": ,
"dateAdded": 1542016335148,
"dateGroupModified": 1542016335148,
"id": "499",
"index": 1,
"parentId": "490",
"title": "Airbus"
}
],
"dateAdded": 1542016208019,
"dateGroupModified": 1542016335149,
"id": "490",
"index": 1,
"parentId": "2",
"title": "Planes"
},
{
"children": ,
"dateAdded": 1542016213955,
"dateGroupModified": 1542016213955,
"id": "491",
"index": 2,
"parentId": "2",
"title": "Ships"
}
],
"dateAdded": 1529656829217,
"dateGroupModified": 1542016213955,
"id": "2",
"index": 1,
"parentId": "0",
"title": "Other Bookmarks"
}
],
"dateAdded": 1541543894421,
"id": "0",
"title": ""
}
]





Here is my function, at the beginning getFolders gets the very top level ID eg. 2:



const getFolders = (bmkNode) => {
const props = {
menuContainerId: $('#bookmarks')
}

const getTree = (element, bmkNode) => {
const ul = $('<ul data-node="' + bmkNode + '"></ul>')
let li

chrome.bookmarks.getSubTree(bmkNode, (folder) => {
_.map(folder[0].children, (item) => {

if (item.url === undefined || item.url === null) {

li = $('<li data-node="' + item.id + '">' + item.title + '</li>')
ul = $('<ul data-node="' + item.parentId + '"></ul>') //v1
ul.append(li)

if (_.size(item.children) > 0) {

getTree(ul, item.id)

}

element.append(ul)

}

})
})

}

getTree(props.menuContainerId, bmkNode)

}

getFolders('0')


My current output:



<div id="bookmarks">
<ul data-node="0">
<li data-node="1">Bookmarks Bar</li>
</ul>
<ul data-node="0">
<li data-node="2">Other Bookmarks</li>
<ul data-node="2">
<li data-node="489">Cars</li>
<ul data-node="489">
<li data-node="492">Ferrari</li>
<ul data-node="492">
<li data-node="496">F40</li>
</ul>
<ul data-node="492">
<li data-node="497">Testarossa</li>
</ul>
</ul>
<ul data-node="489">
<li data-node="493">Toyota</li>
</ul>
<ul data-node="489">
<li data-node="494">BMW</li>
</ul>
<ul data-node="489">
<li data-node="495">Audi</li>
</ul>
</ul>
<ul data-node="2">
<li data-node="490">Planes</li>
<ul data-node="490">
<li data-node="498">Boeing</li>
</ul>
<ul data-node="490">
<li data-node="499">Airbus</li>
</ul>
</ul>
<ul data-node="2">
<li data-node="491">Ships</li>
</ul>
</ul>
</div>


My desire output:



 <div id="bookmarks">
<ul>
<li>Bookmarks Bar</li>
<li>Other Bookmarks</li>
<ul>
<li>Cars
<li>Ferrari
<ul>
<li>F40</li>
<li>Testarossa</li>
</ul>
</li>
<li>Toyota</li>
<li>BMW</li>
<li>Audi</li>
</li>
<li>Planes</li>
<li>Ships</li>
<ul>

</ul>
<ul>
<li>Boeing</li>
<li>Airbus</li>
</ul>
</ul>
</ul>
</div>





[
{
"children": [
{
"children": [
{
"dateAdded": 1509653754344,
"id": "459",
"index": 18,
"parentId": "1",
"title": "Test 1",
"url": "https://www.test1.net/"
},
{
"dateAdded": 1509653754369,
"id": "460",
"index": 19,
"parentId": "1",
"title": "Test 2",
"url": "https://www.test2.net/"
}
],
"dateAdded": 1529656829217,
"dateGroupModified": 1538037498559,
"id": "1",
"index": 0,
"parentId": "0",
"title": "Bookmarks Bar"
},
{
"children": [
{
"children": [
{
"children": [
{
"children": ,
"dateAdded": 1542016268115,
"dateGroupModified": 1542016268115,
"id": "496",
"index": 0,
"parentId": "492",
"title": "F40"
},
{
"children": ,
"dateAdded": 1542016288842,
"dateGroupModified": 1542016288842,
"id": "497",
"index": 1,
"parentId": "492",
"title": "Testarossa"
}
],
"dateAdded": 1542016224744,
"dateGroupModified": 1542016288843,
"id": "492",
"index": 0,
"parentId": "489",
"title": "Ferrari"
},
{
"children": ,
"dateAdded": 1542016232765,
"dateGroupModified": 1542016232765,
"id": "493",
"index": 1,
"parentId": "489",
"title": "Toyota"
},
{
"children": ,
"dateAdded": 1542016245690,
"dateGroupModified": 1542016245690,
"id": "494",
"index": 2,
"parentId": "489",
"title": "BMW"
},
{
"children": ,
"dateAdded": 1542016253590,
"dateGroupModified": 1542016253590,
"id": "495",
"index": 3,
"parentId": "489",
"title": "Audi"
}
],
"dateAdded": 1542016199154,
"dateGroupModified": 1542016253590,
"id": "489",
"index": 0,
"parentId": "2",
"title": "Cars"
},
{
"children": [
{
"children": ,
"dateAdded": 1542016326727,
"dateGroupModified": 1542016326727,
"id": "498",
"index": 0,
"parentId": "490",
"title": "Boeing"
},
{
"children": ,
"dateAdded": 1542016335148,
"dateGroupModified": 1542016335148,
"id": "499",
"index": 1,
"parentId": "490",
"title": "Airbus"
}
],
"dateAdded": 1542016208019,
"dateGroupModified": 1542016335149,
"id": "490",
"index": 1,
"parentId": "2",
"title": "Planes"
},
{
"children": ,
"dateAdded": 1542016213955,
"dateGroupModified": 1542016213955,
"id": "491",
"index": 2,
"parentId": "2",
"title": "Ships"
}
],
"dateAdded": 1529656829217,
"dateGroupModified": 1542016213955,
"id": "2",
"index": 1,
"parentId": "0",
"title": "Other Bookmarks"
}
],
"dateAdded": 1541543894421,
"id": "0",
"title": ""
}
]





[
{
"children": [
{
"children": [
{
"dateAdded": 1509653754344,
"id": "459",
"index": 18,
"parentId": "1",
"title": "Test 1",
"url": "https://www.test1.net/"
},
{
"dateAdded": 1509653754369,
"id": "460",
"index": 19,
"parentId": "1",
"title": "Test 2",
"url": "https://www.test2.net/"
}
],
"dateAdded": 1529656829217,
"dateGroupModified": 1538037498559,
"id": "1",
"index": 0,
"parentId": "0",
"title": "Bookmarks Bar"
},
{
"children": [
{
"children": [
{
"children": [
{
"children": ,
"dateAdded": 1542016268115,
"dateGroupModified": 1542016268115,
"id": "496",
"index": 0,
"parentId": "492",
"title": "F40"
},
{
"children": ,
"dateAdded": 1542016288842,
"dateGroupModified": 1542016288842,
"id": "497",
"index": 1,
"parentId": "492",
"title": "Testarossa"
}
],
"dateAdded": 1542016224744,
"dateGroupModified": 1542016288843,
"id": "492",
"index": 0,
"parentId": "489",
"title": "Ferrari"
},
{
"children": ,
"dateAdded": 1542016232765,
"dateGroupModified": 1542016232765,
"id": "493",
"index": 1,
"parentId": "489",
"title": "Toyota"
},
{
"children": ,
"dateAdded": 1542016245690,
"dateGroupModified": 1542016245690,
"id": "494",
"index": 2,
"parentId": "489",
"title": "BMW"
},
{
"children": ,
"dateAdded": 1542016253590,
"dateGroupModified": 1542016253590,
"id": "495",
"index": 3,
"parentId": "489",
"title": "Audi"
}
],
"dateAdded": 1542016199154,
"dateGroupModified": 1542016253590,
"id": "489",
"index": 0,
"parentId": "2",
"title": "Cars"
},
{
"children": [
{
"children": ,
"dateAdded": 1542016326727,
"dateGroupModified": 1542016326727,
"id": "498",
"index": 0,
"parentId": "490",
"title": "Boeing"
},
{
"children": ,
"dateAdded": 1542016335148,
"dateGroupModified": 1542016335148,
"id": "499",
"index": 1,
"parentId": "490",
"title": "Airbus"
}
],
"dateAdded": 1542016208019,
"dateGroupModified": 1542016335149,
"id": "490",
"index": 1,
"parentId": "2",
"title": "Planes"
},
{
"children": ,
"dateAdded": 1542016213955,
"dateGroupModified": 1542016213955,
"id": "491",
"index": 2,
"parentId": "2",
"title": "Ships"
}
],
"dateAdded": 1529656829217,
"dateGroupModified": 1542016213955,
"id": "2",
"index": 1,
"parentId": "0",
"title": "Other Bookmarks"
}
],
"dateAdded": 1541543894421,
"id": "0",
"title": ""
}
]






javascript jquery asynchronous google-chrome-extension






share|improve this question















share|improve this question













share|improve this question




share|improve this question








edited Nov 12 at 11:34

























asked Nov 12 at 8:18









Ben

50110




50110












  • Do not use _.each. It does not work with asynchronous code. _.map them to an array of promises and use Promise.all.
    – Bergi
    Nov 12 at 8:24










  • Promisify only the chrome.bookmarks.getSubTree(bmkNode) function, put nothing else into the new Promise constructor. Then use .then() chaining to work with the result values
    – Bergi
    Nov 12 at 8:26










  • @Bergi I thought we are using _.map when we are expecting to return something? There is no return here..? Could you suggest the function changes below? Thanks
    – Ben
    Nov 12 at 9:05












  • Try to find something useful that could be returned (hint: don't use a global folderItem variable). And since the recursive getTrees call is asynchronous, you will need to return a promise for this thing. Then you will have an array of promises in the end, which is something that Promise.all can work with.
    – Bergi
    Nov 12 at 9:12










  • @Bergi I've edited my example so there is no need for promise also added actual object. Tell me what you think? Thanks
    – Ben
    Nov 12 at 10:47


















  • Do not use _.each. It does not work with asynchronous code. _.map them to an array of promises and use Promise.all.
    – Bergi
    Nov 12 at 8:24










  • Promisify only the chrome.bookmarks.getSubTree(bmkNode) function, put nothing else into the new Promise constructor. Then use .then() chaining to work with the result values
    – Bergi
    Nov 12 at 8:26










  • @Bergi I thought we are using _.map when we are expecting to return something? There is no return here..? Could you suggest the function changes below? Thanks
    – Ben
    Nov 12 at 9:05












  • Try to find something useful that could be returned (hint: don't use a global folderItem variable). And since the recursive getTrees call is asynchronous, you will need to return a promise for this thing. Then you will have an array of promises in the end, which is something that Promise.all can work with.
    – Bergi
    Nov 12 at 9:12










  • @Bergi I've edited my example so there is no need for promise also added actual object. Tell me what you think? Thanks
    – Ben
    Nov 12 at 10:47
















Do not use _.each. It does not work with asynchronous code. _.map them to an array of promises and use Promise.all.
– Bergi
Nov 12 at 8:24




Do not use _.each. It does not work with asynchronous code. _.map them to an array of promises and use Promise.all.
– Bergi
Nov 12 at 8:24












Promisify only the chrome.bookmarks.getSubTree(bmkNode) function, put nothing else into the new Promise constructor. Then use .then() chaining to work with the result values
– Bergi
Nov 12 at 8:26




Promisify only the chrome.bookmarks.getSubTree(bmkNode) function, put nothing else into the new Promise constructor. Then use .then() chaining to work with the result values
– Bergi
Nov 12 at 8:26












@Bergi I thought we are using _.map when we are expecting to return something? There is no return here..? Could you suggest the function changes below? Thanks
– Ben
Nov 12 at 9:05






@Bergi I thought we are using _.map when we are expecting to return something? There is no return here..? Could you suggest the function changes below? Thanks
– Ben
Nov 12 at 9:05














Try to find something useful that could be returned (hint: don't use a global folderItem variable). And since the recursive getTrees call is asynchronous, you will need to return a promise for this thing. Then you will have an array of promises in the end, which is something that Promise.all can work with.
– Bergi
Nov 12 at 9:12




Try to find something useful that could be returned (hint: don't use a global folderItem variable). And since the recursive getTrees call is asynchronous, you will need to return a promise for this thing. Then you will have an array of promises in the end, which is something that Promise.all can work with.
– Bergi
Nov 12 at 9:12












@Bergi I've edited my example so there is no need for promise also added actual object. Tell me what you think? Thanks
– Ben
Nov 12 at 10:47




@Bergi I've edited my example so there is no need for promise also added actual object. Tell me what you think? Thanks
– Ben
Nov 12 at 10:47












1 Answer
1






active

oldest

votes

















up vote
0
down vote



accepted










This is correct solution for this problem, no need for Promise as I thought:



   const getFolders = bmkNode => {
const props = {
menuContainerId: $("#bookmarks")
}

const getTree = (element, bmkNode) => {
let ul = $('<ul data-node="' + bmkNode + '"></ul>')
let li

chrome.bookmarks.getSubTree(bmkNode, folder => {
_.map(folder[0].children, item => {
if (item.url === undefined || item.url === null) {
li = $('<li data-node="' + item.id + '"></li>')
li.append(item.title)

ul.append(li)
if (_.size(item.children) > 0) {
getTree(li, item.id)
}

}
})
element.append(ul)
})
}

getTree(props.menuContainerId, bmkNode)
}





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    1 Answer
    1






    active

    oldest

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    active

    oldest

    votes






    active

    oldest

    votes








    up vote
    0
    down vote



    accepted










    This is correct solution for this problem, no need for Promise as I thought:



       const getFolders = bmkNode => {
    const props = {
    menuContainerId: $("#bookmarks")
    }

    const getTree = (element, bmkNode) => {
    let ul = $('<ul data-node="' + bmkNode + '"></ul>')
    let li

    chrome.bookmarks.getSubTree(bmkNode, folder => {
    _.map(folder[0].children, item => {
    if (item.url === undefined || item.url === null) {
    li = $('<li data-node="' + item.id + '"></li>')
    li.append(item.title)

    ul.append(li)
    if (_.size(item.children) > 0) {
    getTree(li, item.id)
    }

    }
    })
    element.append(ul)
    })
    }

    getTree(props.menuContainerId, bmkNode)
    }





    share|improve this answer

























      up vote
      0
      down vote



      accepted










      This is correct solution for this problem, no need for Promise as I thought:



         const getFolders = bmkNode => {
      const props = {
      menuContainerId: $("#bookmarks")
      }

      const getTree = (element, bmkNode) => {
      let ul = $('<ul data-node="' + bmkNode + '"></ul>')
      let li

      chrome.bookmarks.getSubTree(bmkNode, folder => {
      _.map(folder[0].children, item => {
      if (item.url === undefined || item.url === null) {
      li = $('<li data-node="' + item.id + '"></li>')
      li.append(item.title)

      ul.append(li)
      if (_.size(item.children) > 0) {
      getTree(li, item.id)
      }

      }
      })
      element.append(ul)
      })
      }

      getTree(props.menuContainerId, bmkNode)
      }





      share|improve this answer























        up vote
        0
        down vote



        accepted







        up vote
        0
        down vote



        accepted






        This is correct solution for this problem, no need for Promise as I thought:



           const getFolders = bmkNode => {
        const props = {
        menuContainerId: $("#bookmarks")
        }

        const getTree = (element, bmkNode) => {
        let ul = $('<ul data-node="' + bmkNode + '"></ul>')
        let li

        chrome.bookmarks.getSubTree(bmkNode, folder => {
        _.map(folder[0].children, item => {
        if (item.url === undefined || item.url === null) {
        li = $('<li data-node="' + item.id + '"></li>')
        li.append(item.title)

        ul.append(li)
        if (_.size(item.children) > 0) {
        getTree(li, item.id)
        }

        }
        })
        element.append(ul)
        })
        }

        getTree(props.menuContainerId, bmkNode)
        }





        share|improve this answer












        This is correct solution for this problem, no need for Promise as I thought:



           const getFolders = bmkNode => {
        const props = {
        menuContainerId: $("#bookmarks")
        }

        const getTree = (element, bmkNode) => {
        let ul = $('<ul data-node="' + bmkNode + '"></ul>')
        let li

        chrome.bookmarks.getSubTree(bmkNode, folder => {
        _.map(folder[0].children, item => {
        if (item.url === undefined || item.url === null) {
        li = $('<li data-node="' + item.id + '"></li>')
        li.append(item.title)

        ul.append(li)
        if (_.size(item.children) > 0) {
        getTree(li, item.id)
        }

        }
        })
        element.append(ul)
        })
        }

        getTree(props.menuContainerId, bmkNode)
        }






        share|improve this answer












        share|improve this answer



        share|improve this answer










        answered Nov 15 at 8:03









        Ben

        50110




        50110






























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