//根据Id获得页面元素 function $(para) { return document.getElementById(para);} //创建一个新的元素function createElement(type, name) { if (name) { var element = null; try { element = document.createElement("<" + type + " na
1.javascript的数组API Js代码 收藏代码 //定义数组 var pageIds = new Array(); pageIds.push('A'); 数组长度 pageIds.length; //shift:删除原数组第一项,并返回删除元素的值:如果数组为空则返回undefined var a = [1,2,3,4,5]; var b = a.shift(); //a:[2,3,4,5] b:1 //unshift:将参数添加到原数组开头,并返回数组的长度 var a = [1,2
1.javascript的数组API: //定义数组 var pageIds = new Array(); pageIds.push('A'); 数组长度 pageIds.length; //shift:删除原数组第一项,并返回删除元素的值:如果数组为空则返回undefined var a = [1,2,3,4,5]; var b = a.shift(); //a:[2,3,4,5] b:1 //unshift:将参数添加到原数组开头,并返回数组的长度 var a = [1,2,3,4,5];
function noRepeat(arr) { var arr1 = []; for (var i = 0; i < arr.length; i++) { var item = arr[i]; if (arr1.indexOf(item) === -1) arr1.push(item); } return arr1; } console.log(noRepeat(arr));
using System;using System.Collections;using System.Collections.Generic;using System.Linq;using System.Text;using System.Threading.Tasks; namespace ConsoleApplication5{ class Program { public static void aa() { Console.Write(1); } public void aa() { R
1.代码: <canvas width="700" height="300" id="canvasOne" class="canvasOne"></canvas> <script> var cancasOne = document.getElementById('canvasOne'); var ctx = cancasOne.getContext('2d'); var text = '后会
<script type="text/javascript" language="javascript"> function SearchChange() { var ddl = document.getElementById('<%=DropDownList1.ClientID %>') var index = ddl.selectedIndex; var Value = ddl.options[index].value; var Text