Category "typescript"

Cannot find module '@material-ui/lab'

I am building a front-end page where I need @material-ui/lab. After installing the package with npm, I get a typescript error when compiling: TS2307: Cannot fin

Combining generics with index type

Since this works: const f = <T extends string>(x: T) => x; f(""); interface Dictionary<T> { [key: string]: T; } const dict: Dictionary<numbe

Changing material UI button text based on a condition

I am using the material UI button for my component and want to change the button text based on a condition that if order amount is 0, show button text as "cance

Property does not exist on type void

I am writing a hook to make a post request that returns two properties, sessionId and sessionData. I am using this hook in a component. My hook looks like this.

unable to load image file from server in angular

i am sending an image file named figure.png from flask api and it is working fine. i have checked it in postman. now here is the angular code -> chart-compon

Template Parse Error: 'mat-sidenav-container' is not a known element, and about router-outlet, ngif

I used angular13. and Vs code. 'mat-sidenav-container' is not a known element Property binding ngIf not used by any directive on an embedded template. Make sure

Optimise multiple api requests with Promise.all()

I'm trying to optimise multiple made to an 3rd party API (Spotify) in my NestJS API. My code is working but I do not find a way to optimise it. @Get('') async

Error TS2322: Type 'Function' is not assignable to type 'string'

I'm trying to do a question answer catalogue that lets me pick questions with their respective answer options from a String Array, however when I try to assign

Is there a way to handle number inputs instead of string with React Native?

I have a react context state for my multi form input values: const [formValues, setFormValues] = useState({ sex: "male", unitSystem: "metric", hei

Why is the imported Angular/TypeScript model not properly mapping over to my service in Angular application?

I am designing a system that tracks mutual fund information entered manually by the user, and am having difficulties getting the application to properly read th

Custom cypress commands is not assignable to parameter of type 'keyof Chainable<any>

In a .ts file I create a test to try and access a custom created command from command.js, createInbox function is underlined with red with the following message

Clear trailing spaces after pasted number in Angular

How do we strip out spaces at the end of the 10digit number when user copies it from place (like email or word docs etc) and pastes it in the search bar? But th

How to throw "expressive" / console friendly exceptions in JavaScript?

JavaScript noob here... I'm exploring various options for throwing exceptions. Throwing a string / primitive value This seems to be bad practice for several rea

i18next/i18n Change Language not working with the whole website

I'm doing a react-typescript app where I need to be able to translate the site. I'm using the i18next library. In the main page the user can change the language

File upload in angular 11

I am starting on angular 11 and am trying to upload a file or multiple files as a post request to my back end API ( that I created in node.js ) Here is the code

React, typescript: Wrapping text inside table <td> doesn't work

I'd like to wrap the text inside a table cell. I tried "flex-wrap", "break-inside" and similar properties, nothing has worked so far. It has already worked a fe

How does Typescript know where dist/index.js is, if it doesn't exist?

There is something I don't understand about this. I am trying to learn Typescript and I got me this boilerplate code using Snowpack and it contains an index.htm

How to refer to a class with private constructor in a function with generic type parameters?

I have a base class and multiple classes that extend that base class which all have a private constructor. I now want to create a static function that creates n

Typescript based React: importScripts() gives: 'importScripts' is not defined no-undef

Following Google Workbox instructions, the first thing I am told I should include in serviceWorker.js is: importScripts('https://storage.googleapis.com/workbox

Import Typescript/JSX code directly from npm package

I am trying to build a very basic custom npm package which will be imported in a Typescript React app (created with CRA). React app ALPHA: import {MyText} from