本文把有关JavaScript的方法和技巧整理下，让每个在为JavaScript而烦恼的人明白，JavaScript就这么回事！并希望JavaScript还可以成为你的朋友，让你豁然开朗，在项目中更好的应用～ 适合阅读范围：对JavaScript一无所知～离精通只差一步之遥的人
有些时候你精通一门语言，但是会发现你其实整天在和其它语言打交道，也许你以为这些微不足道，不至于影响你的开发进度，但恰恰是这些你不重视的东西会浪费你很多时间，我一直以为我早在几年前就已经精通JavaScript了，直到目前，我才越来越觉得JavaScript远比我想象的复杂和强大，我开始崇拜它，就像崇拜所有OOP语言一样～
趁着节日的空隙，把有关JavaScript的方法和技巧整理下，让每个在为JavaScript而烦恼的人明白，JavaScript就这么回事！并希望JavaScript还可以成为你的朋友，让你豁然开朗，在项目中更好的应用～
适合阅读范围：对JavaScript一无所知～离精通只差一步之遥的人
基础知识：HTML
JavaScript就这么回事：基础知识
1 创建脚本块
<script language="JavaScript">
JavaScript code goes here
</script>
2 隐藏脚本代码
1 <script language="JavaScript">
2 <!--
3 document.write("Hello");
4 // -->
5 </script>
在不支持JavaScript的浏览器中将不执行相关代码
3 浏览器不支持的时候显示
1 <noscript>
2 Hello to the non-JavaScript browser.
3 </noscript>
4 链接外部脚本文件
1 <script language="JavaScript" src="filename.js"></script>
5 注释脚本
1 // This is a comment
2 document.write("Hello"); // This is a comment
3 /*
4 All of this
5 is a comment
6 */
6 输出到浏览器
1 document.write("<strong>Hello</strong>");
7 定义变量
1 var myVariable = "some value";
8 字符串相加
1 var myString = "String1" + "String2";
9 字符串搜索
1 <script language="JavaScript">
2 <!--
3 var myVariable = "Hello there";
4 var therePlace = myVariable.search("there");
5 document.write(therePlace);
6 // -->
7 </script>
10 字符串替换
1 thisVar.replace("Monday","Friday");
11 格式化字串
01 <script language="JavaScript">
02 <!--
03 var myVariable = 'Hello there";
04 document.write(myVariable.big() + "<br>");
05 document.write(myVariable.blink() + "<br>");
06 document.write(myVariable.bold() + "<br>");
07 document.write(myVariable.fixed() + "<br>");
08 document.write(myVariable.fontcolor("red") + "<br>");
09 document.write(myVariable.fontsize("18pt") + "<br>");
10 document.write(myVariable.italics() + "<br>");
11 document.write(myVariable.small() + "<br>");
12 document.write(myVariable.strike() + "<br>");
13 document.write(myVariable.sub() + "<br>");
14 document.write(myVariable.sup() + "<br>");
15 document.write(myVariable.toLowerCase() + "<br>");
16 document.write(myVariable.toUpperCase() + "<br>");
17 var firstString = "My String";
18 var finalString = firstString.bold().toLowerCase().fontcolor("red");
19 // -->
20 </script>
12 创建数组
01 <script language="JavaScript">
02 <!--
03 var myArray = new Array(5);
04 myArray[0] = "First Entry";
05 myArray[1] = "Second Entry";
06 myArray[2] = "Third Entry";
07 myArray[3] = "Fourth Entry";
08 myArray[4] = "Fifth Entry";
09 var anotherArray = new Array("First Entry","Second Entry","Third Entry","Fourth Entry","Fifth Entry");
10 // -->
11 </script>
13 数组排序
01 <script language="JavaScript">
02 <!--
03 var myArray = new Array(5);
04 myArray[0] = "z";
05 myArray[1] = "c";
06 myArray[2] = "d";
07 myArray[3] = "a";
08 myArray[4] = "q";
09 document.write(myArray.sort());
10 // -->
11 </script>
14 分割字符串
01 <script language="JavaScript">
02 <!--
03 var myVariable = "a,b,c,d";
04 var stringArray = myVariable.split(",");
05 document.write(stringArray[0]);
06 document.write(stringArray[1]);
07 document.write(stringArray[2]);
08 document.write(stringArray[3]);
09 // -->
10 </script>
15 弹出警告信息
1 <script language="JavaScript">
2 <!--
3 window.alert("Hello");
4 // -->
5 </script>
16 弹出确认框
1 <script language="JavaScript">
2 <!--
3 var result = window.confirm("Click OK to continue");
4 // -->
5 </script>
17 定义函数
1 <script language="JavaScript">
2 <!--
3 function multiple(number1,number2) {
4 var result = number1 * number2;
5 return result;
6 }
7 // -->
8 </script>
18 调用JS函数
1 <a href="#" onClick="functionName()">Link text</a>
2 <a href="http://www.5icool.org"javascript:functionName"()">Link text</a>
19 在页面加载完成后执行函数
1 <body onLoad="functionName();">
2 Body of the page
3 </body>
20 条件判断
1 <script>
2 <!--
3 var userChoice = window.confirm("Choose OK or Cancel");
4 var result = (userChoice == true) ? "OK" : "Cancel";
5 document.write(result);
6 // -->
7 </script>
21 指定次数循环
01 <script>
02 <!--
03 var myArray = new Array(3);
04 myArray[0] = "Item 0";
05 myArray[1] = "Item 1";
06 myArray[2] = "Item 2";
07 for (i = 0; i < myArray.length; i++) {
08 document.write(myArray[i] + "<br>");
09 }
10 // -->
11 </script>
22 设定将来执行
1 <script>
2 <!--
3 function hello() {
4 window.alert("Hello");
5 }
6 window.setTimeout("hello()",5000);
7 // -->
8 </script>
23 定时执行函数
1 <script>
2 <!--
3 function hello() {
4 window.alert("Hello");
5 window.setTimeout("hello()",5000);
6 }
7 window.setTimeout("hello()",5000);
8 // -->
9 </script>
24 取消定时执行
1 <script>
2 <!--
3 function hello() {
4 window.alert("Hello");
5 }
6 var myTimeout = window.setTimeout("hello()",5000);
7 window.clearTimeout(myTimeout);
8 // -->
9 </script>