checkJs is a mode for checking JavaScript code using the TypeScript type system
Questions tagged [checkjs]
10 questions
33
votes
3 answers
require a json file results in an error: Cannot find module
In a nodej project open in VsCode with checkJs enabled, when a json file is required like
const myFile = require('./my-file.json')
This makes an error [ts] Cannot find module.
How is it possible to remove the error warning?
I tried to:
add…
François Romain
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12
votes
0 answers
How to use custom typings in JS project
I'm working in an Electron project with checkjs: true set in my jsconfig.json and have created a file with custom typings in ProjectRoot/typings/index.d.ts.
I'd like to have those typings available in all JS files. Unfortunately I have to reference…
suamikim
- 5,350
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4
votes
1 answer
JSDoc Typescript Checking of Named Default Params
Given the following
/**
* @param {{bar?: string|null}} [param0]
*/
const foo = ({bar = null} = {}) => bar;
Typescript 3.7.2 reports
var bar: string | null
Binding element 'bar' implicitly has an 'any' type.ts(7031)
The JavaScript code works how I…
Paul Milham
- 526
- 5
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4
votes
1 answer
How do I override incorrect types from a package that ships its own .d.ts?
I am using chalk with a JavaScript project that I'm checking with TypeScript's checkJs flag.
The JavaScript code imports it like so:
const chalk = require('chalk')
Unfortunately, chalk ships its own types, and its types are wrong. It should use the…
Nathan Shively-Sanders
- 18,329
- 4
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1
vote
1 answer
TypeScript errors while using it for type-checking JavaScript code containing React components
I am using typescript for type checking my javascript code that has docstring type annotations.
It worked fine until I started using React.
There is no issue when I write my components as classes:
export default class MyComponent extends…
dannymo
- 390
- 3
- 13
1
vote
0 answers
Using @type for declare type of class method in JavaScript
When I use @type to declare type of class method in JavaScript with d.ts (see Type Checking JavaScript Files), the parameter types are determined incorrectly, if I use the short form of the method entry. If I use a form with function, everything…
Игорь Новожилов
- 61
- 3
1
vote
1 answer
with ts(2605) in VScode with checkJs enabled
I wanted to use JS type checking capability inside VScode. Everything works like charm but React.Fragment is linted with error:
JSX element type 'ReactElement' is not a constructor function for JSX elements.
Type 'ReactElement' is missing…
palci12
- 179
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1
vote
0 answers
How to use classes from other module in JSDoc annotations
Best explained with an example:
some-class.js
function SomeClass() { /* ... */ }
SomeClass.prototype.doSomething = function() { /* ... */ };
export function createSomeClass() {
return new SomeClass();
}
index.js
import { createSomeClass }…
suamikim
- 5,350
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0
votes
1 answer
How to annotate an ES5 class with a JSDoc @template in VSCode to prevent checkJS errors?
I am attempting to annotate all my JavaScript functions and class properties with JSDoc to enable proper type checking using TypeScript and the checkJS option.
However, since I want to support older browsers (IE9), and I do not want to transpile the…
José Cadete
- 41
- 7
0
votes
1 answer
Exclude files from "checkJS"
Can I somehow exclude dedicated files from VSCodes setting "javascript.implicitProjectConfig.checkJs": true?
I'd like to not have my webpack builds checked which are all placed in a dist folder.
I know that I could add **/dist/* or **/dist to…
suamikim
- 5,350
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- 75