React Native with TypeScript: How to set up globals in setup.js?
I'm building a React Native app with TypeScript.
I want to use jest-fetch-mock. In the documentation it says to create setup.js file and add
global.fetch = require("jest-fetch-mock");
in it. I did that. But I get the error:
[ts] Cannot compile namespaces when the '--isolatedModules' flag is provided.
So I googled and found out that I just have to import something to fix this (which is fine, since I need imports for setting NativeModules.ReactLocalization for using localization anyway).
Then I get the error:
[ts] Cannot find name 'global'.
So I googled some more and found this 'fix':
// Change to file to setup.ts and
const globalAny: any = global;
But it throws the same error and now I'm stuck. How can I set a global variable?
typescript unit-testing react-native jestjs jest-fetch-mock
asked Nov 14 '18 at 9:58
J. Hesters
774831
add a comment |
I'm building a React Native app with TypeScript.
I want to use jest-fetch-mock. In the documentation it says to create setup.js file and add
global.fetch = require("jest-fetch-mock");
in it. I did that. But I get the error:
[ts] Cannot compile namespaces when the '--isolatedModules' flag is provided.
So I googled and found out that I just have to import something to fix this (which is fine, since I need imports for setting NativeModules.ReactLocalization for using localization anyway).
Then I get the error:
[ts] Cannot find name 'global'.
So I googled some more and found this 'fix':
// Change to file to setup.ts and
const globalAny: any = global;
But it throws the same error and now I'm stuck. How can I set a global variable?
typescript unit-testing react-native jestjs jest-fetch-mock
asked Nov 14 '18 at 9:58
J. Hesters
774831
add a comment |
I'm building a React Native app with TypeScript.
I want to use jest-fetch-mock. In the documentation it says to create setup.js file and add
global.fetch = require("jest-fetch-mock");
in it. I did that. But I get the error:
[ts] Cannot compile namespaces when the '--isolatedModules' flag is provided.
So I googled and found out that I just have to import something to fix this (which is fine, since I need imports for setting NativeModules.ReactLocalization for using localization anyway).
Then I get the error:
[ts] Cannot find name 'global'.
So I googled some more and found this 'fix':
// Change to file to setup.ts and
const globalAny: any = global;
But it throws the same error and now I'm stuck. How can I set a global variable?
typescript unit-testing react-native jestjs jest-fetch-mock
asked Nov 14 '18 at 9:58
J. Hesters
774831
I'm building a React Native app with TypeScript.
I want to use jest-fetch-mock. In the documentation it says to create setup.js file and add
global.fetch = require("jest-fetch-mock");
in it. I did that. But I get the error:
[ts] Cannot compile namespaces when the '--isolatedModules' flag is provided.
So I googled and found out that I just have to import something to fix this (which is fine, since I need imports for setting NativeModules.ReactLocalization for using localization anyway).
Then I get the error:
[ts] Cannot find name 'global'.
So I googled some more and found this 'fix':
// Change to file to setup.ts and
const globalAny: any = global;
But it throws the same error and now I'm stuck. How can I set a global variable?
typescript unit-testing react-native jestjs jest-fetch-mock
typescript unit-testing react-native jestjs jest-fetch-mock
asked Nov 14 '18 at 9:58
J. Hesters
774831
asked Nov 14 '18 at 9:58
J. Hesters
774831
asked Nov 14 '18 at 9:58
J. Hesters
774831
asked Nov 14 '18 at 9:58
J. Hesters
774831
asked Nov 14 '18 at 9:58
J. Hesters
774831
774831
add a comment |
add a comment |
1 Answer
1
active
oldest
votes
Why typescript compiles .js files?
If you have setup.ts file: try to add declare var global: any; before global.fetch = ....
However, I suggest you to use typings for your project:
npm i -D @types/node @types/jest
Then extending global object will look like this:
declare module NodeJS {
interface Global {
fetch: GlobalFetch
}
}
global.fetch = require('jest-fetch-mock');
answered Nov 14 '18 at 10:19
pure cuteness
1,142719
add a comment |
Your Answer
StackExchange.ifUsing("editor", function () {
StackExchange.using("externalEditor", function () {
StackExchange.using("snippets", function () {
StackExchange.snippets.init();
});
});
}, "code-snippets");
StackExchange.ready(function() {
var channelOptions = {
tags: "".split(" "),
id: "1"
};
initTagRenderer("".split(" "), "".split(" "), channelOptions);
StackExchange.using("externalEditor", function() {
// Have to fire editor after snippets, if snippets enabled
if (StackExchange.settings.snippets.snippetsEnabled) {
StackExchange.using("snippets", function() {
createEditor();
});
}
else {
createEditor();
}
});
function createEditor() {
StackExchange.prepareEditor({
heartbeatType: 'answer',
autoActivateHeartbeat: false,
convertImagesToLinks: true,
noModals: true,
showLowRepImageUploadWarning: true,
reputationToPostImages: 10,
bindNavPrevention: true,
postfix: "",
imageUploader: {
brandingHtml: "Powered by u003ca class="icon-imgur-white" href="https://imgur.com/"u003eu003c/au003e",
contentPolicyHtml: "User contributions licensed under u003ca href="https://creativecommons.org/licenses/by-sa/3.0/"u003ecc by-sa 3.0 with attribution requiredu003c/au003e u003ca href="https://stackoverflow.com/legal/content-policy"u003e(content policy)u003c/au003e",
allowUrls: true
},
onDemand: true,
discardSelector: ".discard-answer"
,immediatelyShowMarkdownHelp:true
});
}
});
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
StackExchange.ready(
function () {
StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fstackoverflow.com%2fquestions%2f53297437%2freact-native-with-typescript-how-to-set-up-globals-in-setup-js%23new-answer', 'question_page');
}
);
Post as a guest
Required, but never shown
1 Answer
1
active
oldest
votes
1 Answer
1
active
oldest
votes
active
oldest
votes
active
oldest
votes
Why typescript compiles .js files?
If you have setup.ts file: try to add declare var global: any; before global.fetch = ....
However, I suggest you to use typings for your project:
npm i -D @types/node @types/jest
Then extending global object will look like this:
declare module NodeJS {
interface Global {
fetch: GlobalFetch
}
}
global.fetch = require('jest-fetch-mock');
answered Nov 14 '18 at 10:19
pure cuteness
1,142719
add a comment |
Why typescript compiles .js files?
If you have setup.ts file: try to add declare var global: any; before global.fetch = ....
However, I suggest you to use typings for your project:
npm i -D @types/node @types/jest
Then extending global object will look like this:
declare module NodeJS {
interface Global {
fetch: GlobalFetch
}
}
global.fetch = require('jest-fetch-mock');
answered Nov 14 '18 at 10:19
pure cuteness
1,142719
add a comment |
Why typescript compiles .js files?
If you have setup.ts file: try to add declare var global: any; before global.fetch = ....
However, I suggest you to use typings for your project:
npm i -D @types/node @types/jest
Then extending global object will look like this:
declare module NodeJS {
interface Global {
fetch: GlobalFetch
}
}
global.fetch = require('jest-fetch-mock');
answered Nov 14 '18 at 10:19
pure cuteness
1,142719
Why typescript compiles .js files?
If you have setup.ts file: try to add declare var global: any; before global.fetch = ....
However, I suggest you to use typings for your project:
npm i -D @types/node @types/jest
Then extending global object will look like this:
declare module NodeJS {
interface Global {
fetch: GlobalFetch
}
}
global.fetch = require('jest-fetch-mock');
answered Nov 14 '18 at 10:19
pure cuteness
1,142719
edited Nov 14 '18 at 10:45
answered Nov 14 '18 at 10:19
pure cuteness
1,142719
answered Nov 14 '18 at 10:19
pure cuteness
1,142719
answered Nov 14 '18 at 10:19
pure cuteness
1,142719
1,142719
add a comment |
add a comment |
Thanks for contributing an answer to Stack Overflow!
- Please be sure to answer the question. Provide details and share your research!
But avoid …
- Asking for help, clarification, or responding to other answers.
- Making statements based on opinion; back them up with references or personal experience.
To learn more, see our tips on writing great answers.
Some of your past answers have not been well-received, and you're in danger of being blocked from answering.
Please pay close attention to the following guidance:
- Please be sure to answer the question. Provide details and share your research!
But avoid …
- Asking for help, clarification, or responding to other answers.
- Making statements based on opinion; back them up with references or personal experience.
To learn more, see our tips on writing great answers.
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
StackExchange.ready(
function () {
StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fstackoverflow.com%2fquestions%2f53297437%2freact-native-with-typescript-how-to-set-up-globals-in-setup-js%23new-answer', 'question_page');
}
);
Post as a guest
Required, but never shown
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
