JavaScript Exercises

I'm currently writing a class factory in TypeScript, and would like to return a type as the out… Read more Returning A Type As A Variable In Typescript

I have angular2 & mongoDB configured. So far I am able to read json files using http service bu… Read more How To Connect Mongodb To Angular2 App?

I have several typescript files, some of them export a const named APIS. I'm trying to access t… Read more Accessing Typescript File Variable Values Using Gulp

I'm trying to include a local library, so i follow theese 2 tutorials: how to create library, h… Read more Use A Local Module, Using Local Dependency

I am using ng2-bootstrap for the modal stuff. I am trying to separate my modals and my other compon… Read more Ng2-bootstrap, Call Modal Defined In Child Component From Parent Compent

React beginner here, English is not my mother language so sorry for mistakes, here I have an input,… Read more Multiple Customer Different Id's

this.firmCategories = this.firmCategories.filter(x => { x.id !== firmCatId; }); I can see tha… Read more What's Wrong With My Array.filter Syntax?

I want to sort this javascript array: [103,3,4,6,8,'8L',67,1,11,19,68,86,107,'9L']… Read more Sort Javascript Array By Numbers And Letters

I need to add input fields to array of objects and a map which grows dynamically based on user'… Read more How To Add Input Fields Dynamically In Angular 6

I am trying to run jest test cases but I am facing error - ReferenceError: TextEncoder is not defi… Read more Referenceerror: Textencoder Is Not Defined With Mongodb Nodes

I am using angular2@2.4.1 release. How would i do a validation on select field? Solution 1: You ca… Read more Validation For Select Field Angular 2

TLDR: Playground Repro In my application, I'm defining multiple form modules which look roughly… Read more Typescript Mysterious Intersection

I'm trying to create an Rx.Observable from a chain of Promises with RxJS. The difference from t… Read more How To Convert A Sequence Of Promises Into Rx.observable With Rxjs?

I have very simple TypeScript app, which compiles fine using webpack, but gives me an error 'Bu… Read more Cannot Find Module When Compiling Under Visual Studio

I asked a question about JS Promises in this post: I'm doing Promises wrong... What am I missin… Read more I'm Doing Promises Better, But Still Kind Of Wrong... One More Thing To Clear Up

This works fine AFAIK: (function f() { console.log(f.name); //logs f })(); But some of the an… Read more Currently Running Javascript Function Name?

It shows me these errors after the project is run and build style.d.ts(72,67): error TS1144: '{… Read more Angular Project Build Successfully But Giving These Errors

I am trying to display some hit markers on google maps, and display a route from start to finish. … Read more Google Maps - Hide Destination Marker

Is it possible to have a type that contains any value BUT the values from a predefined set? type Fr… Read more Typescript: Type To Contain Any Value Except Values From A Predefined Set

Using CryptoJS i got as a result a byte[8] when I need a 32 one, this code exactly: CryptoJS.SHA256… Read more Sha256 With Byte[32] Using Cryptojs?