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如何將 jQuery 代碼集成到 Angular 8 中？

[英]How to integrate jQuery code into Angular 8?

 原文  2020-01-06 09:55:18  1   3    javascript/ jquery/ angular

問題描述

我嘗試按照本教程進行操作，但出現了類似Identifier expected.錯誤Identifier expected. , '{' or ';' expected. '{' or ';' expected. , Parameter declaration expected. , Cannot find name '$'. Did you mean the instance member 'this.$'? Cannot find name '$'. Did you mean the instance member 'this.$'? 拋出。 該代碼應該單擊樹視圖箭頭以展開視圖，然后將單擊事件綁定到每個單個元素。

組件.ts：

import { Component, OnInit } from '@angular/core';

@Component({
  selector: 'app-treeview-tab',
  templateUrl: './treeview-tab.component.html',
  styleUrls: ['./treeview-tab.component.scss']
})
export class TreeviewTabComponent implements OnInit {
  $(".tree-node").find("span").not("span[class*='toggle-children']").click(function (){console.log($(this))});
  constructor() { }
.....
 }
}

App.component.ts：

import { Component, OnInit } from '@angular/core';
declare var $: any;
@Component({
  selector: 'app-root',
  templateUrl: './app.component.html',
  styleUrls: ['./app.component.scss']
})

export class AppComponent implements OnInit {

  title = 'Avior';

  constructor() {
  }

  ngOnInit() {  }
}

更新

渲染的 HTML，由 Angular 渲染並包含來自樹視圖插件的樹視圖：

<div _ngcontent-ais-c3=""><router-outlet _ngcontent-ais-c3=""></router-outlet><app-treeview-tab _nghost-ais-c4=""><tree-root _ngcontent-ais-c4="" ng-reflect-nodes="[object Object],[object Object" ng-reflect-options="[object Object]"><tree-viewport><!--bindings={
  "ng-reflect-mobx-autorun": "[object Object]"
}--><!----><div style="height: auto;"><div class="angular-tree-component"><!--bindings={
  "ng-reflect-ng-if": "[object Object],[object Object"
}--><tree-node-collection ng-reflect-nodes="[object Object],[object Object" ng-reflect-tree-model="[object Object]" ng-reflect-templates="[object Object]"><!--bindings={
  "ng-reflect-mobx-autorun": "[object Object]"
}--><!----><div style="margin-top: 0px;"><!--bindings={
  "ng-reflect-ng-for-of": "[object Object],[object Object",
  "ng-reflect-ng-for-track-by": "function (index, node) {\n     "
}--><tree-node ng-reflect-node="[object Object]" ng-reflect-index="0" ng-reflect-templates="[object Object]"><!--bindings={
  "ng-reflect-mobx-autorun": "[object Object]"
}--><!----><!--bindings={
  "ng-reflect-ng-if": "true"
}--><div class="tree-node-level-1 tree-node tree-node-expanded"><!--bindings={
  "ng-reflect-ng-if": "true"
}--><tree-node-drop-slot ng-reflect-node="[object Object]" ng-reflect-drop-index="0"><div class="node-drop-slot" ng-reflect-allow-dragover-styling="true" ng-reflect-tree-allow-drop="function() {
    [native code]"></div></tree-node-drop-slot><tree-node-wrapper ng-reflect-node="[object Object]" ng-reflect-index="0" ng-reflect-templates="[object Object]"><!--bindings={
  "ng-reflect-ng-if": "true"
}--><div class="node-wrapper" style="padding-left: 0px;"><!--bindings={}--><tree-node-expander ng-reflect-node="[object Object]"><!--bindings={
  "ng-reflect-mobx-autorun": "[object Object]"
}--><!----><!--bindings={
  "ng-reflect-ng-if": "true"
}--><span class="toggle-children-wrapper toggle-children-wrapper-expanded"><span class="toggle-children"></span></span><!--bindings={
  "ng-reflect-ng-if": "false"
}--><!----></tree-node-expander><div class="node-content-wrapper" ng-reflect-allow-dragover-styling="true" ng-reflect-tree-allow-drop="function (element, $event) {
 " draggable="false" ng-reflect-dragged-element="[object Object]"><tree-node-content ng-reflect-node="[object Object]" ng-reflect-index="0"><!--bindings={
  "ng-reflect-ng-if": "true"
}--><span>Admin</span><!--bindings={
  "ng-reflect-ng-template-outlet-context": "[object Object]"
}--></tree-node-content></div></div><!--bindings={
  "ng-reflect-ng-template-outlet-context": "[object Object]"
}--></tree-node-wrapper><tree-node-children ng-reflect-node="[object Object]" ng-reflect-templates="[object Object]"><!--bindings={
  "ng-reflect-mobx-autorun": "[object Object]"
}--><!----><!--bindings={
  "ng-reflect-animate-speed": "1",
  "ng-reflect-animate-acceleration": "1.2",
  "ng-reflect-is-open": "true"
}--><div class="tree-children"><!--bindings={
  "ng-reflect-ng-if": "[object Object],[object Object"
}--><tree-node-collection ng-reflect-nodes="[object Object],[object Object" ng-reflect-tree-model="[object Object]" ng-reflect-templates="[object Object]"><!--bindings={
  "ng-reflect-mobx-autorun": "[object Object]"
}--><!----><div style="margin-top: 0px;"><!--bindings={
  "ng-reflect-ng-for-of": "[object Object],[object Object",
  "ng-reflect-ng-for-track-by": "function (index, node) {\n     "
}--><tree-node ng-reflect-node="[object Object]" ng-reflect-index="0" ng-reflect-templates="[object Object]"><!--bindings={
  "ng-reflect-mobx-autorun": "[object Object]"
}--><!----><!--bindings={
  "ng-reflect-ng-if": "true"
}--><div class="tree-node-level-2 tree-node tree-node-leaf"><!--bindings={
  "ng-reflect-ng-if": "true"
}--><tree-node-drop-slot ng-reflect-node="[object Object]" ng-reflect-drop-index="0"><div class="node-drop-slot" ng-reflect-allow-dragover-styling="true" ng-reflect-tree-allow-drop="function() {
    [native code]"></div></tree-node-drop-slot><tree-node-wrapper ng-reflect-node="[object Object]" ng-reflect-index="0" ng-reflect-templates="[object Object]"><!--bindings={
  "ng-reflect-ng-if": "true"
}--><div class="node-wrapper" style="padding-left: 0px;"><!--bindings={}--><tree-node-expander ng-reflect-node="[object Object]"><!--bindings={
  "ng-reflect-mobx-autorun": "[object Object]"
}--><!----><!--bindings={
  "ng-reflect-ng-if": "false"
}--><!--bindings={
  "ng-reflect-ng-if": "true"
}--><span class="toggle-children-placeholder"></span><!----></tree-node-expander><div class="node-content-wrapper" ng-reflect-allow-dragover-styling="true" ng-reflect-tree-allow-drop="function (element, $event) {
 " draggable="false" ng-reflect-dragged-element="[object Object]"><tree-node-content ng-reflect-node="[object Object]" ng-reflect-index="0"><!--bindings={
  "ng-reflect-ng-if": "true"
}--><span>Name1</span><!--bindings={
  "ng-reflect-ng-template-outlet-context": "[object Object]"
}--></tree-node-content></div></div><!--bindings={
  "ng-reflect-ng-template-outlet-context": "[object Object]"
}--></tree-node-wrapper><tree-node-children ng-reflect-node="[object Object]" ng-reflect-templates="[object Object]"><!--bindings={
  "ng-reflect-mobx-autorun": "[object Object]"
}--><!----><!--bindings={
  "ng-reflect-animate-speed": "1",
  "ng-reflect-animate-acceleration": "1.2"
}--><!----></tree-node-children><tree-node-drop-slot ng-reflect-node="[object Object]" ng-reflect-drop-index="1"><div class="node-drop-slot" ng-reflect-allow-dragover-styling="true" ng-reflect-tree-allow-drop="function() {
    [native code]"></div></tree-node-drop-slot></div><!--bindings={
  "ng-reflect-ng-template-outlet-context": "[object Object]"
}--><!----></tree-node><tree-node ng-reflect-node="[object Object]" ng-reflect-index="1" ng-reflect-templates="[object Object]"><!--bindings={
  "ng-reflect-mobx-autorun": "[object Object]"
}--><!----><!--bindings={
  "ng-reflect-ng-if": "true"
}--><div class="tree-node-level-2 tree-node tree-node-leaf"><!--bindings={
  "ng-reflect-ng-if": "false"
}--><tree-node-wrapper ng-reflect-node="[object Object]" ng-reflect-index="1" ng-reflect-templates="[object Object]"><!--bindings={
  "ng-reflect-ng-if": "true"
}--><div class="node-wrapper" style="padding-left: 0px;"><!--bindings={}--><tree-node-expander ng-reflect-node="[object Object]"><!--bindings={
  "ng-reflect-mobx-autorun": "[object Object]"
}--><!----><!--bindings={
  "ng-reflect-ng-if": "false"
}--><!--bindings={
  "ng-reflect-ng-if": "true"
}--><span class="toggle-children-placeholder"></span><!----></tree-node-expander><div class="node-content-wrapper" ng-reflect-allow-dragover-styling="true" ng-reflect-tree-allow-drop="function (element, $event) {
 " draggable="false" ng-reflect-dragged-element="[object Object]"><tree-node-content ng-reflect-node="[object Object]" ng-reflect-index="1"><!--bindings={
  "ng-reflect-ng-if": "true"
}--><span>Name2</span><!--bindings={
  "ng-reflect-ng-template-outlet-context": "[object Object]"
}--></tree-node-content></div></div><!--bindings={
  "ng-reflect-ng-template-outlet-context": "[object Object]"
}--></tree-node-wrapper><tree-node-children ng-reflect-node="[object Object]" ng-reflect-templates="[object Object]"><!--bindings={
  "ng-reflect-mobx-autorun": "[object Object]"
}--><!----><!--bindings={
  "ng-reflect-animate-speed": "1",
  "ng-reflect-animate-acceleration": "1.2"
}--><!----></tree-node-children><tree-node-drop-slot ng-reflect-node="[object Object]" ng-reflect-drop-index="2"><div class="node-drop-slot" ng-reflect-allow-dragover-styling="true" ng-reflect-tree-allow-drop="function() {
    [native code]"></div></tree-node-drop-slot></div><!--bindings={
  "ng-reflect-ng-template-outlet-context": "[object Object]"
}--><!----></tree-node></div></tree-node-collection><!--bindings={
  "ng-reflect-ng-if": "false"
}--></div><!----></tree-node-children><tree-node-drop-slot ng-reflect-node="[object Object]" ng-reflect-drop-index="1"><div class="node-drop-slot" ng-reflect-allow-dragover-styling="true" ng-reflect-tree-allow-drop="function() {
    [native code]"></div></tree-node-drop-slot></div><!--bindings={
  "ng-reflect-ng-template-outlet-context": "[object Object]"
}--><!----></tree-node><tree-node ng-reflect-node="[object Object]" ng-reflect-index="1" ng-reflect-templates="[object Object]"><!--bindings={
  "ng-reflect-mobx-autorun": "[object Object]"
}--><!----><!--bindings={
  "ng-reflect-ng-if": "true"
}--><div class="tree-node-level-1 tree-node tree-node-expanded"><!--bindings={
  "ng-reflect-ng-if": "false"
}--><tree-node-wrapper ng-reflect-node="[object Object]" ng-reflect-index="1" ng-reflect-templates="[object Object]"><!--bindings={
  "ng-reflect-ng-if": "true"
}--><div class="node-wrapper" style="padding-left: 0px;"><!--bindings={}--><tree-node-expander ng-reflect-node="[object Object]"><!--bindings={
  "ng-reflect-mobx-autorun": "[object Object]"
}--><!----><!--bindings={
  "ng-reflect-ng-if": "true"
}--><span class="toggle-children-wrapper toggle-children-wrapper-expanded"><span class="toggle-children"></span></span><!--bindings={
  "ng-reflect-ng-if": "false"
}--><!----></tree-node-expander><div class="node-content-wrapper" ng-reflect-allow-dragover-styling="true" ng-reflect-tree-allow-drop="function (element, $event) {
 " draggable="false" ng-reflect-dragged-element="[object Object]"><tree-node-content ng-reflect-node="[object Object]" ng-reflect-index="1"><!--bindings={
  "ng-reflect-ng-if": "true"
}--><span>Anwender</span><!--bindings={
  "ng-reflect-ng-template-outlet-context": "[object Object]"
}--></tree-node-content></div></div><!--bindings={
  "ng-reflect-ng-template-outlet-context": "[object Object]"
}--></tree-node-wrapper><tree-node-children ng-reflect-node="[object Object]" ng-reflect-templates="[object Object]"><!--bindings={
  "ng-reflect-mobx-autorun": "[object Object]"
}--><!----><!--bindings={
  "ng-reflect-animate-speed": "1",
  "ng-reflect-animate-acceleration": "1.2",
  "ng-reflect-is-open": "true"
}--><div class="tree-children"><!--bindings={
  "ng-reflect-ng-if": "[object Object],[object Object"
}--><tree-node-collection ng-reflect-nodes="[object Object],[object Object" ng-reflect-tree-model="[object Object]" ng-reflect-templates="[object Object]"><!--bindings={
  "ng-reflect-mobx-autorun": "[object Object]"
}--><!----><div style="margin-top: 0px;"><!--bindings={
  "ng-reflect-ng-for-of": "[object Object],[object Object",
  "ng-reflect-ng-for-track-by": "function (index, node) {\n     "
}--><tree-node ng-reflect-node="[object Object]" ng-reflect-index="0" ng-reflect-templates="[object Object]"><!--bindings={
  "ng-reflect-mobx-autorun": "[object Object]"
}--><!----><!--bindings={
  "ng-reflect-ng-if": "true"
}--><div class="tree-node-level-2 tree-node tree-node-leaf"><!--bindings={
  "ng-reflect-ng-if": "true"
}--><tree-node-drop-slot ng-reflect-node="[object Object]" ng-reflect-drop-index="0"><div class="node-drop-slot" ng-reflect-allow-dragover-styling="true" ng-reflect-tree-allow-drop="function() {
    [native code]"></div></tree-node-drop-slot><tree-node-wrapper ng-reflect-node="[object Object]" ng-reflect-index="0" ng-reflect-templates="[object Object]"><!--bindings={
  "ng-reflect-ng-if": "true"
}--><div class="node-wrapper" style="padding-left: 0px;"><!--bindings={}--><tree-node-expander ng-reflect-node="[object Object]"><!--bindings={
  "ng-reflect-mobx-autorun": "[object Object]"
}--><!----><!--bindings={
  "ng-reflect-ng-if": "false"
}--><!--bindings={
  "ng-reflect-ng-if": "true"
}--><span class="toggle-children-placeholder"></span><!----></tree-node-expander><div class="node-content-wrapper" ng-reflect-allow-dragover-styling="true" ng-reflect-tree-allow-drop="function (element, $event) {
 " draggable="false" ng-reflect-dragged-element="[object Object]"><tree-node-content ng-reflect-node="[object Object]" ng-reflect-index="0"><!--bindings={
  "ng-reflect-ng-if": "true"
}--><span>Name3</span><!--bindings={
  "ng-reflect-ng-template-outlet-context": "[object Object]"
}--></tree-node-content></div></div><!--bindings={
  "ng-reflect-ng-template-outlet-context": "[object Object]"
}--></tree-node-wrapper><tree-node-children ng-reflect-node="[object Object]" ng-reflect-templates="[object Object]"><!--bindings={
  "ng-reflect-mobx-autorun": "[object Object]"
}--><!----><!--bindings={
  "ng-reflect-animate-speed": "1",
  "ng-reflect-animate-acceleration": "1.2"
}--><!----></tree-node-children><tree-node-drop-slot ng-reflect-node="[object Object]" ng-reflect-drop-index="1"><div class="node-drop-slot" ng-reflect-allow-dragover-styling="true" ng-reflect-tree-allow-drop="function() {
    [native code]"></div></tree-node-drop-slot></div><!--bindings={
  "ng-reflect-ng-template-outlet-context": "[object Object]"
}--><!----></tree-node><tree-node ng-reflect-node="[object Object]" ng-reflect-index="1" ng-reflect-templates="[object Object]"><!--bindings={
  "ng-reflect-mobx-autorun": "[object Object]"
}--><!----><!--bindings={
  "ng-reflect-ng-if": "true"
}--><div class="tree-node-level-2 tree-node tree-node-leaf"><!--bindings={
  "ng-reflect-ng-if": "false"
}--><tree-node-wrapper ng-reflect-node="[object Object]" ng-reflect-index="1" ng-reflect-templates="[object Object]"><!--bindings={
  "ng-reflect-ng-if": "true"
}--><div class="node-wrapper" style="padding-left: 0px;"><!--bindings={}--><tree-node-expander ng-reflect-node="[object Object]"><!--bindings={
  "ng-reflect-mobx-autorun": "[object Object]"
}--><!----><!--bindings={
  "ng-reflect-ng-if": "false"
}--><!--bindings={
  "ng-reflect-ng-if": "true"
}--><span class="toggle-children-placeholder"></span><!----></tree-node-expander><div class="node-content-wrapper" ng-reflect-allow-dragover-styling="true" ng-reflect-tree-allow-drop="function (element, $event) {
 " draggable="false" ng-reflect-dragged-element="[object Object]"><tree-node-content ng-reflect-node="[object Object]" ng-reflect-index="1"><!--bindings={
  "ng-reflect-ng-if": "true"
}--><span>Name4</span><!--bindings={
  "ng-reflect-ng-template-outlet-context": "[object Object]"
}--></tree-node-content></div></div><!--bindings={
  "ng-reflect-ng-template-outlet-context": "[object Object]"
}--></tree-node-wrapper><tree-node-children ng-reflect-node="[object Object]" ng-reflect-templates="[object Object]"><!--bindings={
  "ng-reflect-mobx-autorun": "[object Object]"
}--><!----><!--bindings={
  "ng-reflect-animate-speed": "1",
  "ng-reflect-animate-acceleration": "1.2"
}--><!----></tree-node-children><tree-node-drop-slot ng-reflect-node="[object Object]" ng-reflect-drop-index="2"><div class="node-drop-slot" ng-reflect-allow-dragover-styling="true" ng-reflect-tree-allow-drop="function() {
    [native code]"></div></tree-node-drop-slot></div><!--bindings={
  "ng-reflect-ng-template-outlet-context": "[object Object]"
}--><!----></tree-node></div></tree-node-collection><!--bindings={
  "ng-reflect-ng-if": "false"
}--></div><!----></tree-node-children><tree-node-drop-slot ng-reflect-node="[object Object]" ng-reflect-drop-index="2"><div class="node-drop-slot" ng-reflect-allow-dragover-styling="true" ng-reflect-tree-allow-drop="function() {
    [native code]"></div></tree-node-drop-slot></div><!--bindings={
  "ng-reflect-ng-template-outlet-context": "[object Object]"
}--><!----></tree-node><tree-node ng-reflect-node="[object Object]" ng-reflect-index="2" ng-reflect-templates="[object Object]"><!--bindings={
  "ng-reflect-mobx-autorun": "[object Object]"
}--><!----><!--bindings={
  "ng-reflect-ng-if": "true"
}--><div class="tree-node-level-1 tree-node tree-node-active tree-node-focused tree-node-expanded"><!--bindings={
  "ng-reflect-ng-if": "false"
}--><tree-node-wrapper ng-reflect-node="[object Object]" ng-reflect-index="2" ng-reflect-templates="[object Object]"><!--bindings={
  "ng-reflect-ng-if": "true"
}--><div class="node-wrapper" style="padding-left: 0px;"><!--bindings={}--><tree-node-expander ng-reflect-node="[object Object]"><!--bindings={
  "ng-reflect-mobx-autorun": "[object Object]"
}--><!----><!--bindings={
  "ng-reflect-ng-if": "true"
}--><span class="toggle-children-wrapper toggle-children-wrapper-expanded"><span class="toggle-children"></span></span><!--bindings={
  "ng-reflect-ng-if": "false"
}--><!----></tree-node-expander><div class="node-content-wrapper node-content-wrapper-active node-content-wrapper-focused" ng-reflect-allow-dragover-styling="true" ng-reflect-tree-allow-drop="function (element, $event) {
 " draggable="false" ng-reflect-dragged-element="[object Object]"><tree-node-content ng-reflect-node="[object Object]" ng-reflect-index="2"><!--bindings={
  "ng-reflect-ng-if": "true"
}--><span>Entwickler</span><!--bindings={
  "ng-reflect-ng-template-outlet-context": "[object Object]"
}--></tree-node-content></div></div><!--bindings={
  "ng-reflect-ng-template-outlet-context": "[object Object]"
}--></tree-node-wrapper><tree-node-children ng-reflect-node="[object Object]" ng-reflect-templates="[object Object]"><!--bindings={
  "ng-reflect-mobx-autorun": "[object Object]"
}--><!----><!--bindings={
  "ng-reflect-animate-speed": "1",
  "ng-reflect-animate-acceleration": "1.2",
  "ng-reflect-is-open": "true"
}--><div class="tree-children"><!--bindings={
  "ng-reflect-ng-if": "[object Object]"
}--><tree-node-collection ng-reflect-nodes="[object Object]" ng-reflect-tree-model="[object Object]" ng-reflect-templates="[object Object]"><!--bindings={
  "ng-reflect-mobx-autorun": "[object Object]"
}--><!----><div style="margin-top: 0px;"><!--bindings={
  "ng-reflect-ng-for-of": "[object Object]",
  "ng-reflect-ng-for-track-by": "function (index, node) {\n     "
}--><tree-node ng-reflect-node="[object Object]" ng-reflect-index="0" ng-reflect-templates="[object Object]"><!--bindings={
  "ng-reflect-mobx-autorun": "[object Object]"
}--><!----><!--bindings={
  "ng-reflect-ng-if": "true"
}--><div class="tree-node-level-2 tree-node tree-node-leaf"><!--bindings={
  "ng-reflect-ng-if": "true"
}--><tree-node-drop-slot ng-reflect-node="[object Object]" ng-reflect-drop-index="0"><div class="node-drop-slot" ng-reflect-allow-dragover-styling="true" ng-reflect-tree-allow-drop="function() {
    [native code]"></div></tree-node-drop-slot><tree-node-wrapper ng-reflect-node="[object Object]" ng-reflect-index="0" ng-reflect-templates="[object Object]"><!--bindings={
  "ng-reflect-ng-if": "true"
}--><div class="node-wrapper" style="padding-left: 0px;"><!--bindings={}--><tree-node-expander ng-reflect-node="[object Object]"><!--bindings={
  "ng-reflect-mobx-autorun": "[object Object]"
}--><!----><!--bindings={
  "ng-reflect-ng-if": "false"
}--><!--bindings={
  "ng-reflect-ng-if": "true"
}--><span class="toggle-children-placeholder"></span><!----></tree-node-expander><div class="node-content-wrapper" ng-reflect-allow-dragover-styling="true" ng-reflect-tree-allow-drop="function (element, $event) {
 " draggable="false" ng-reflect-dragged-element="[object Object]"><tree-node-content ng-reflect-node="[object Object]" ng-reflect-index="0"><!--bindings={
  "ng-reflect-ng-if": "true"
}--><span>Name5</span><!--bindings={
  "ng-reflect-ng-template-outlet-context": "[object Object]"
}--></tree-node-content></div></div><!--bindings={
  "ng-reflect-ng-template-outlet-context": "[object Object]"
}--></tree-node-wrapper><tree-node-children ng-reflect-node="[object Object]" ng-reflect-templates="[object Object]"><!--bindings={
  "ng-reflect-mobx-autorun": "[object Object]"
}--><!----><!--bindings={
  "ng-reflect-animate-speed": "1",
  "ng-reflect-animate-acceleration": "1.2"
}--><!----></tree-node-children><tree-node-drop-slot ng-reflect-node="[object Object]" ng-reflect-drop-index="1"><div class="node-drop-slot" ng-reflect-allow-dragover-styling="true" ng-reflect-tree-allow-drop="function() {
    [native code]"></div></tree-node-drop-slot></div><!--bindings={
  "ng-reflect-ng-template-outlet-context": "[object Object]"
}--><!----></tree-node></div></tree-node-collection><!--bindings={
  "ng-reflect-ng-if": "false"
}--></div><!----></tree-node-children><tree-node-drop-slot ng-reflect-node="[object Object]" ng-reflect-drop-index="3"><div class="node-drop-slot" ng-reflect-allow-dragover-styling="true" ng-reflect-tree-allow-drop="function() {
    [native code]"></div></tree-node-drop-slot></div><!--bindings={
  "ng-reflect-ng-template-outlet-context": "[object Object]"
}--><!----></tree-node></div></tree-node-collection><!--bindings={
  "ng-reflect-ng-if": "false"
}--></div></div></tree-viewport></tree-root></app-treeview-tab></div>

3 個解決方案

解決方案1
 2 已采納  2020-01-06 09:58:31

確保你已經安裝了Jquery 。要安裝JQuery按照以下步驟操作

  1. 使用 npm 作為安裝 jQuery

npm install jquery — save .

  1. 導航到 Angular CLI 項目文件夾根目錄下的 ./angular-cli.json 文件，找到 scripts: [] 屬性，並包含 jQuery 的路徑

"scripts": [ "../node_modules/jquery/dist/jquery.min.js" ]

  1. 現在你要做的就是將它導入到任何你想使用 jQuery 的組件中

     import * as $ from 'jquery'; (or) declare var $: any;

確保Jquery正常工作

 public ngOnInit()  {
    $(document).ready(function(){
       // Now use your code 
      // $(".tree-node").find("span").not("span[class*='toggle-children']").click(function (){console.log($(this))});
       $('.tree-node > span:not(.toggle-children)').off('click').on('click', function(){
 console.log('clicked');
 }) }); }

編輯以獲取元素的 html。 

 $('div span').each(function(){ alert($(this).html()); })
 <script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/2.2.0/jquery.min.js"></script> <div id="banner-message"> <span>First </span> <span>Second </span> <span>Thirs </span> </div>

解決方案2
 1  2020-01-06 09:57:55

之所以會出現異常，是因為在class declaration存在code-execution ，而沒有將其包裝在function 。

import { Component, OnInit } from '@angular/core';

@Component({
  selector: 'app-treeview-tab',
  templateUrl: './treeview-tab.component.html',
  styleUrls: ['./treeview-tab.component.scss']
})
export class TreeviewTabComponent implements OnInit {

  constructor() {
    $(".tree-node").find("span").not("span[class*='toggle-children']").click(function (){console.log($(this))}); <!-- moved -->
 }
}

移動您的 jQuery 函數將解決您的問題，並且還將在TreeviewTabComponent類被實例化時執行它。

解決方案3
 0  2020-01-06 09:57:54

在您的任一function使用它。 Not outside of the function.

import { Component, OnInit } from '@angular/core';
declare var $: any;

@Component({
  selector: 'app-treeview-tab',
  templateUrl: './treeview-tab.component.html',
  styleUrls: ['./treeview-tab.component.scss']
})
export class TreeviewTabComponent implements OnInit {

  constructor() {
     $(".tree-node").find("span").not("span[class*='toggle-children']").click(function (){
         console.log($(this))
     });
 }
}

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