Category "typescript"

Selected Field Value visible in matToolTip but not in disabled divTable dropdown

I have the following code: table.component.html <div *ngFor="let person of persons; let i = index;" class="tbody"> <div class="row"> <

Webpack5 + react-refresh-webpack-plugin does not work

I wanted to setup react with webpack, babel, and typescript myself since I would like to know more and have a consistent boilerplate for development. I have bee

Function with RxJS and combineLatest sometimes works and sometimes doesn't

If you call this function multiple times with the values of the observables obs1 and obs2 being the same each time, the returned array is not always the same. g

Declare types from file with `export .. from` to global interface

I have the file with a lot of export { default as NAME } from './PATH_TO_FILE'; And I want to declare types to global @vue/runtime-core inside GlobalComponents.

How to use Haversine formula in Sequelize-typescript to get distance between two coordinates

SELECT id, ( 6371 * ACOS( COS( RADIANS( db_latitude ) ) * COS( RADIANS( $user_latitude ) ) * COS( RADIANS( $user_longitude ) -

Nuxt Error : Cannot read properties of null (reading 'addEventListener') default.vue and index.vue not rendering

I'm using nuxt.js and vuesax as an UI framework, I did modify my default.vue in /layouts with a basic navbar template exemple from vuesax. Then I used @nuxtjs/r

Class constructor optional parameter

I want to be able to initialise a class with or without value. If you pass a value then all methods of this class will expect this value as an argument and the

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