How to run a jquery function in Angular 2 after every component finish loading

You will want to use the “ngAfterViewInit” lifecycle hook, through importing AfterViewInit (https://angular.io/docs/ts/latest/guide/lifecycle-hooks.html#!#afterview). You can use it as shown below:

Installation:

    tsd install jquery --save

or

    typings install dt~jquery --global --save

Utilization:

    import { Component, AfterViewInit } from '@angular/core';
    import * as $ from 'jquery';

    ngAfterViewInit() {
        this.doJqueryLoad();     
        this.doClassicLoad();

        $(this.el.nativeElement)
            .chosen()
            .on('change', (e, args) => {
                this.selectedValue = args.selected;
            });
    }

    doClassicLoad() {
      // A $( document ).ready() block.
      $( document ).ready(function() {
          console.log( "Unnecessary..." );
      });      
    }

    // You don't need to use document.ready... 
    doJqueryLoad() {
        console.log("Can use jquery without doing document.ready")
        var testDivCount = $('#testDiv').length;
        console.log("TestDivCount: ", testDivCount);
    }

Here is a plunker for an example:
http://plnkr.co/edit/KweZYO9hk9Dz8pqDK77F?p=info