I am working on a project in angular2 and curious to know if there is any mean by which I can use angularjs functionalities in my angular2 application.

for ex.

in angularjs, I used to do following operations:

1. angular.isString(value)
2. angular.isArray(value)
3. angular.copy(value)

I just want to know that is there any module or package which can help me do above operations in angular2/typescript?

Thanks in advance.

I am working on a project in angular2 and curious to know if there is any mean by which I can use angularjs functionalities in my angular2 application.

for ex.

in angularjs, I used to do following operations:

1. angular.isString(value)
2. angular.isArray(value)
3. angular.copy(value)

I just want to know that is there any module or package which can help me do above operations in angular2/typescript?

Thanks in advance.

• javascript
• angularjs
• typescript
• angular

3 Answers 3

Just use JavaScript:

• isString

Simple

  typeof foo === 'string'

• angular.isArray(value)

Simple

Array.isArray(value)

• angular.copy(value)

Simple

Object.assign({},value)

Except for copy, angular2 actually provides the isString and isArray (and a lot more) functions from "@angular/common/src/facade/lang". To use these you have to import them like this:

import {isString, isArray} from "@angular/common/src/facade/lang";

But, the body of these functions are the same as basarat mentioned, and this import is no longer available. Sooo, use the solution above :)

You could use lodash-es (ES module import support for lodash) to do the following:

import { isString } from 'lodash-es';

console.log(isString('') === true);

I prefer this over the accepted answer of typeof foo === 'string' because string literals are prone to mistakes and are harder to minify.