angular.js - How to use jquery and other plug-ins in angular2?

Question

How to use jquery and other plug-ins in angular2
For example:
class MyComponent {

constructor() {
    // how to query the DOM element from here?
}

}
Although I have read a few answers, I don’t understand them, and I have failed to try them myself. Please give me some advice

Answer 1

First install jquery

tsd install jquery --save

or

typings install dt~jquery --global --save

Write in the header of the ts file you need to use

declare var $: any;

This way you can use jquery in your ts file

Answer 2

Like it, but it is not recommended to use Jquery in angular2, it is easy to be contaminated

Answer 3

ng2 Don’t use jquery, there is no need
If you pass the dom, just specify it #content in the template