tagged [typescript]

What does the "as" keyword do?

What does the "as" keyword do? I'm not even sure if `as` is a keyword, but anyway, what does it do in JavaScript?

27 Jan at 15:18

How to get argument types from function in Typescript

How to get argument types from function in Typescript I may have missed something in the docs, but I can't find any way in typescript to get the types of the parameters in a function. That is, I've go...

How can I declare a global variable in Angular 2 and up / Typescript?

How can I declare a global variable in Angular 2 and up / Typescript? I would like some variables to be accessible everywhere in an `Angular 2` in the `Typescript` language. How should I go about acco...

4 Mar at 13:51

Programmatically compile typescript in C#?

Programmatically compile typescript in C#? I'm trying to write a function in C# that takes in a string containing typescript code and returns a string containing JavaScript code. Is there a library fu...

11 Oct at 02:37

How to convert a string to number in TypeScript?

How to convert a string to number in TypeScript? Given a string representation of a number, how can I convert it to `number` type in TypeScript? ``` var numberString: string = "1234"; var numberValue:...

1 Jun at 21:30

ServiceStack and Angular 2

ServiceStack and Angular 2 Can anyone guide me on how to make Angular 2 with TypeScript work on a self hosted ServiceStack service? I had it running with Angular 1 and Razor but now...I am lost.

8 Aug at 15:0

servicestack VueJS Compile failure

servicestack VueJS Compile failure [enter image description here](https://i.stack.imgur.com/Fvnb3.png) After installing Vuejs in the servicestack then run the project it shows error like this.kindly g...

What's the difference between 'extends' and 'implements' in TypeScript

What's the difference between 'extends' and 'implements' in TypeScript I would like to know what and have in common and how they differ.

24 Nov at 18:43

Typescript Array Map Return Object

Typescript Array Map Return Object I have the following code. Is there any way to reduce the code to something like this?

11 Dec at 14:37

What is TypeScript and why would I use it in place of JavaScript?

What is TypeScript and why would I use it in place of JavaScript? Can you please describe what the TypeScript language is? What can it do that JavaScript or available libraries cannot do, that would g...

11 May at 13:36

How to get names of enum entries?

How to get names of enum entries? I would like to iterate a TypeScript enum object and get each enumerated symbol name, for example: enum myEnum { entry1, entry2 }

5 Oct at 01:58

Is there a way to check for both `null` and `undefined`?

Is there a way to check for both `null` and `undefined`? Since TypeScript is strongly-typed, simply using `if () {}` to check for `null` and `undefined` doesn't sound right. Does TypeScript have any d...

23 Apr at 07:53

How to update TypeScript to latest version with npm?

How to update TypeScript to latest version with npm? Currently I have TypeScript 1.0.3.0 version installed on my machine. I want to update it to latest one i.e. 2.0. How to do this with npm?

29 Aug at 14:51

Access template reference variables from component class

Access template reference variables from component class Is it possible to access the template access variable from the component class? i.e., can I access it here,

How do you produce a .d.ts "typings" definition file from an existing JavaScript library?

How do you produce a .d.ts "typings" definition file from an existing JavaScript library? I'm using a lot of libraries both my own and 3rd party. I see the "typings" directory contains some for Jquery...

19 Oct at 09:1

How do I remove an array item in TypeScript?

How do I remove an array item in TypeScript? I have an array that I've created in TypeScript and it has a property that I use as a key. If I have that key, how can I remove an item from it?

5 Aug at 11:4

What is the question mark for in a Typescript parameter name

What is the question mark for in a Typescript parameter name In `id?` what's the `?` for?

25 Mar at 14:0

Call a global variable inside module

Call a global variable inside module I have a typescript file called `Projects.ts` that I want to reference a global variable declared in a bootstrap plugin called `bootbox.js`. I want to access a var...

20 Sep at 20:19

How to use Bootstrap in an Angular project?

How to use Bootstrap in an Angular project? I am starting my first application and my basic setup is done. How can I add to my application? If you can provide an example then it would be a great help.

using process.env in TypeScript

using process.env in TypeScript How do I read node environment variables in TypeScript? If i use `process.env.NODE_ENV` I have this error : I have installed `@types/node` but it didn't help.

19 Jul at 15:11

Angular cookies

Angular cookies I've been looking all around for Angular cookies but I haven't been able to find how to implement cookies management in Angular. Is there any way to manage cookies (like $[cookie](http...

31 Oct at 17:28

Exclude property from type

Exclude property from type I'd like to exclude a single property from the type. How can I do that? For example I have And I want to exclude property `z` to get

6 Dec at 09:7

How to get a single value from FormGroup

How to get a single value from FormGroup I am aware that I can get the values of a form using However, I want to get a single value from the form. How do I go about doing that?

Declare and initialize a Dictionary in Typescript

Declare and initialize a Dictionary in Typescript Given the following code Why isn't the initialization rejected? After all, the second object does not have the "lastName" property.

How to create enum like type in TypeScript?

How to create enum like type in TypeScript? I'm working on a definitions file for the Google maps API for TypeScript. And I need to define an enum like type eg. `google.maps.Animation` which contains ...

5 Jan at 08:15