Most viewed questions in TypeSript

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Typescript with Webpack - You may need an appropriate loader to handle this file type, currently no loaders are configured to process this file

So I believe the problem is that ...READ MORE

Aug 3, 2022 in TypeSript by Abhinaya
 • 1,160 points • 67,753 views
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1 answer

Argument of type 'any' is not assignable to parameter of type 'never'.

All you have to do is define ...READ MORE

May 31, 2022 in TypeSript by Nina
 • 3,060 points • 64,046 views
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Only refers to a type, but is being used as a value here

To do type checking at runtime with ...READ MORE

Jun 8, 2022 in TypeSript by Nina
 • 3,060 points • 59,266 views
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Typescript: Property "XXX" does not exist on type 'IntrinsicAttributes & IntrinsicClassAttributes

Double check the newly added object types. ...READ MORE

Jun 8, 2022 in TypeSript by Nina
 • 3,060 points • 48,361 views
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Typescript: TS7006: Parameter 'xxx' implicitly has an 'any' type

You are using the --noImplicitAny and TypeScript doesn't know ...READ MORE

Jun 10, 2022 in TypeSript by Nina
 • 3,060 points • 27,618 views
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TypeScript ES6: import module "File is not a module error"

We need the export, as a part of ...READ MORE

Jun 7, 2022 in TypeSript by Nina
 • 3,060 points • 22,182 views
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TypeScript: 'tsc command not found'

A few tips in order restart the terminal restart ...READ MORE

Jun 7, 2022 in TypeSript by Nina
 • 3,060 points • 21,749 views
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How to fix Definition for rule typescript-eslint no-use-before-declare was not found eslint typescript-eslint no-use-before-declare

Well according to this page, this rule is ...READ MORE

Jun 1, 2022 in TypeSript by Nina
 • 3,060 points • 21,009 views
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TypeScript TS7015: Element implicitly has an 'any' type because index expression is not of type 'number'

If you want a key/value data structure ...READ MORE

Jun 7, 2022 in TypeSript by Nina
 • 3,060 points • 19,978 views
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TypeScript error TS2304: cannot find name ' require'

Here's a really easy work around: declare var ...READ MORE

May 31, 2022 in TypeSript by Nina
 • 3,060 points • 16,146 views
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TypeScript - ',' expected.ts(1005)

You can't put statements in JSX curly braces, only expressions. You ...READ MORE

Jun 9, 2022 in TypeSript by Nina
 • 3,060 points • 15,331 views
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1 answer

Typescript: Can't find names - Error: cannot find name

A known issue: https://github.com/angular/angular/issues/4902 Core reason: the .d.ts file implicitly included ...READ MORE

Jun 7, 2022 in TypeSript by Nina
 • 3,060 points • 13,287 views
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Typescript Errors: How do I ignore the error "property does not exist on value of type"

to ignore it globally, in your tsconfig.json, ...READ MORE

Jul 26, 2023 in TypeSript by john
edited Mar 5 • 11,789 views
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Redux + TypeScript -> Error: A case reducer on a non-draftable value must not return undefined redux

reducers: { updateMode(state: SliceState, ...READ MORE

Jun 8, 2024 in TypeSript by abhi
edited Mar 5 • 9,493 views
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1 answer

How to use document.getElementById() method in TypeScript?

Typescript will force you to check the ...READ MORE

Jun 15, 2022 in TypeSript by Nina
 • 3,060 points • 7,969 views
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Typescript says: "types '"a"' and '"b"' have no overlap". What does it mean?

const value = Math.random() < 0.5 ? ...READ MORE

Jul 5, 2022 in TypeSript by Logan
 • 2,140 points • 7,884 views
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1 answer

How to declare and initialize a Dictionary in Typescript

Apparently this doesn't work when passing the ...READ MORE

May 31, 2022 in TypeSript by Nina
 • 3,060 points • 7,186 views
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1 answer

What is record in TypeScript

A Record<K, T> is an object type whose property ...READ MORE

Jun 7, 2022 in TypeSript by Nina
 • 3,060 points • 6,944 views
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1 answer

Interface type check with Typescript

You can achieve what you want without ...READ MORE

May 31, 2022 in TypeSript by Nina
 • 3,060 points • 6,653 views
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1 answer

Typescript compiler can't find node with yarn - Cannot find type definition file for 'node'

I solved it on my computer by ...READ MORE

Jun 22, 2022 in TypeSript by Nina
 • 3,060 points • 6,535 views
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1 answer

Typescript: Debug Failure. False expression: Non-string value passed to `ts.resolveTypeReferenceDirective`

The same as a couple of days ...READ MORE

Aug 3, 2022 in TypeSript by Abhinaya
 • 1,160 points • 6,095 views
0 votes
1 answer

Error in the angular compiler requires typescript >=3.4.0 and <3.6.0 but 3.9.10 was found instead

Run this script to find exact version npm ...READ MORE

Aug 3, 2022 in TypeSript by Abhinaya
 • 1,160 points • 6,014 views
0 votes
1 answer

TypeScript: How do you loop through a dictionary?

To loop over the key/values, use a for ...READ MORE

May 31, 2022 in TypeSript by Nina
 • 3,060 points • 5,873 views
0 votes
1 answer

How to use useState hook in React with typescript correctly?

You can set a string type for it Explicit way: const ...READ MORE

Aug 3, 2022 in TypeSript by Abhinaya
 • 1,160 points • 5,658 views
0 votes
1 answer

Using TypeScript, and Object.assign gives me an error "property 'assign' does not exist on type 'ObjectConstructor'"

You can use type assertion, like this: (<any>Object).as ...READ MORE

Aug 3, 2022 in TypeSript by Abhinaya
 • 1,160 points • 5,511 views
0 votes
1 answer

VS Code enforces semicolons, but why doesn't Angular and TypeScript not use it consistently?

JavaScript has a syntactic feature known as semicolon ...READ MORE

May 31, 2022 in TypeSript by Nina
 • 3,060 points • 5,423 views
0 votes
1 answer

Definition for rule '@typescript-eslint/no-shadow' was not found

v2.34.0 of the typescript-eslint packages is 9 months ...READ MORE

Jun 13, 2022 in TypeSript by Nina
 • 3,060 points • 5,330 views
0 votes
1 answer

How can I define a type for a CSS color in TypeScript?

There was a proposal for a type of ...READ MORE

Jun 15, 2022 in TypeSript by Nina
 • 3,060 points • 5,259 views
0 votes
1 answer

Why is Event.target not Element in Typescript?

JLRishe's answer is correct, so I simply ...READ MORE

Aug 3, 2022 in TypeSript by Abhinaya
 • 1,160 points • 4,915 views
0 votes
1 answer

How to install and run Typescript locally in npm?

It took me a while to figure ...READ MORE

Jun 8, 2022 in TypeSript by Nina
 • 3,060 points • 4,874 views
0 votes
1 answer

TypeScript and React Native: Are the type definitions for RN styles wrong?

You can test some of ways for ...READ MORE

Jun 10, 2022 in TypeSript by Nina
 • 3,060 points • 4,444 views
0 votes
1 answer

Square brackets around vs after expression in Typescript

x is an Array, while y is a Tuple. The ...READ MORE

Jun 7, 2022 in TypeSript by Nina
 • 3,060 points • 4,274 views
0 votes
1 answer

Angular/TypeScript: ng-multiselect-dropdown multiple properties in TextField

I was able to work around this ...READ MORE

Jun 13, 2022 in TypeSript by Nina
 • 3,060 points • 4,259 views
0 votes
0 answers

Javascript Arrays Opposite of Includes

What is the proper approach to remove ...READ MORE

Aug 8, 2022 in TypeSript by krishna
 • 2,820 points • 4,117 views
0 votes
1 answer

Angular 9 + CLI (TypeScript) - How to stop generating .spec.ts test files

If you're using v6 and need to ...READ MORE

Jun 13, 2022 in TypeSript by Nina
 • 3,060 points • 4,023 views
0 votes
1 answer

Customise Ngx-toastr in angular 6 with TypeScript

After Override this CSS in your Style.css File. I ...READ MORE

Jun 9, 2022 in TypeSript by Nina
 • 3,060 points • 3,847 views
0 votes
1 answer

How to import library with TypeScript Playground

TypeScript Playground isn't a fully fledged sandbox ...READ MORE

Jun 13, 2022 in TypeSript by Nina
 • 3,060 points • 3,805 views
0 votes
1 answer

Error TS1005: ';' expected. TypeScript for First Build error rxjs inside node_modules

 I investigated that rxjs released a new version: 6.4.0. And ...READ MORE

Jun 10, 2022 in TypeSript by Nina
 • 3,060 points • 3,702 views
0 votes
1 answer

What do square brackets mean in a type definition in Typescript?

I've missed a basic type of TypeScript: Tuples. So ...READ MORE

Jun 22, 2022 in TypeSript by Nina
 • 3,060 points • 3,607 views
0 votes
1 answer

TypeScript: Class Constructor type

class Zoo<T extends Animal> { ...READ MORE

Jun 8, 2022 in TypeSript by Nina
 • 3,060 points • 3,522 views
0 votes
1 answer

Cast a JSON Object to a TypeScript class

I had the same issue and this ...READ MORE

May 31, 2022 in TypeSript by Nina
 • 3,060 points • 3,402 views
0 votes
1 answer

Where to find TypeScript version in Visual Studio?

If you only have TypeScript installed for ...READ MORE

Jun 7, 2022 in TypeSript by Nina
 • 3,060 points • 3,356 views
0 votes
1 answer

How do I extend a TypeScript class definition in a separate definition file?

If you don't have control over the ...READ MORE

Jun 10, 2022 in TypeSript by Nina
 • 3,060 points • 3,263 views
0 votes
1 answer

How to read local csv file in JavaScript/TypeScript?

Here is how to use the readAsBinaryString() from the FileReader API ...READ MORE

Jun 9, 2022 in TypeSript by Nina
 • 3,060 points • 3,154 views
0 votes
0 answers

Using pdfmaker in Typescript

I want to use to pdfmaker in ...READ MORE

Jul 5, 2022 in TypeSript by Logan
 • 2,140 points • 3,074 views
0 votes
1 answer

Angular4 - routerLink with typescript

In code, you use .navigate instead: this.router.navigate(['/products']); You pass ...READ MORE

Jun 22, 2022 in TypeSript by Nina
 • 3,060 points • 2,911 views
0 votes
1 answer

How to define string literal union type from constants in Typescript

You can also use enum for this ...READ MORE

Aug 3, 2022 in TypeSript by Abhinaya
 • 1,160 points • 2,673 views
0 votes
1 answer

TypeScript Object assign gives me an error property assign does not exist on type ObjectConstructor

For TypeScript 2.1 and higher, you can ...READ MORE

May 31, 2022 in TypeSript by Nina
 • 3,060 points • 2,590 views
0 votes
1 answer

How to pass HTML to JPG/PNG? In Javascript/Typescript

You can use the package: https://www.npmjs.com/package/dom-to-image In your page: import ...READ MORE

Jun 22, 2022 in TypeSript by Nina
 • 3,060 points • 2,257 views
0 votes
1 answer

How to use useState hook in React with TypeScript correctly?

Without any initial argument, the type of email and setEmail will ...READ MORE

Jun 10, 2022 in TypeSript by Nina
 • 3,060 points • 2,256 views
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