jsjavascript:JavaScript就这么回事 (JS基础知识整理)

on 2009-1-15 in Javascript教程 | 0 Comment
="t18">1 创建脚本块

引用内容代码
<script language=”JavaScript”>
JavaScript 代码写在这里面
</script>

2 隐藏脚本代码
引用内容代码
<script language=”JavaScript”>
<!--
document.write(“Hello”);
// -->
</script>
在不支持JavaScript浏览器中将不执行相关代码

3 浏览器不支持时候显示
引用内容代码
<noscript>
Hello to the non-JavaScript browser.
</noscript>

4 链接外部脚本文件
引用内容代码
<script language=”JavaScript” src="/”filename.js"”></script>

5 注释脚本
引用内容代码
// This is a comment
document.write(“Hello”); // This is a comment
/*
All of this
is a comment
*/

6 输出到浏览器
引用内容代码
document.write(“<strong>Hello</strong>”);

7 定义变量
引用内容代码
var myVariable = “some value”;

8 串相加
引用内容代码
var myString = “String1” + “String2”;

9 串搜索
引用内容代码
<script language=”JavaScript”>
<!--
var myVariable = “Hello there”;
var therePlace = myVariable.search(“there”);
document.write(therePlace);
// -->
</script>

10 串替换
引用内容代码
thisVar.replace(“Monday”,”Friday”);

11 格式化字串
引用内容代码
<script language=”JavaScript”>
<!--
var myVariable = “Hello there”;
document.write(myVariable.big + “<br>”);
document.write(myVariable.blink + “<br>”);
document.write(myVariable.bold + “<br>”);
document.write(myVariable.fixed + “<br>”);
document.write(myVariable.fontcolor(“red”) + “<br>”);
document.write(myVariable.fontsize(“18pt”) + “<br>”);
document.write(myVariable.italics + “<br>”);
document.write(myVariable.small + “<br>”);
document.write(myVariable.strike + “<br>”);
document.write(myVariable.sub + “<br>”);
document.write(myVariable.sup + “<br>”);
document.write(myVariable.toLowerCase + “<br>”);
document.write(myVariable.toUpperCase + “<br>”);
var firstString = “My String”;
var finalString = firstString.bold.toLowerCase.fontcolor(“red”);
// -->
</script>

12 创建
引用内容代码
<script language=”JavaScript”>
<!--
var myArray = Array(5);
myArray[0] = “First Entry”;
myArray[1] = “Second Entry”;
myArray[2] = “Third Entry”;
myArray[3] = “Fourth Entry”;
myArray[4] = “Fth Entry”;
var anotherArray = Array(“First Entry”,”Second Entry”,”Third Entry”,”Fourth Entry”,”Fth Entry”);
// -->
</script>

13 排序
引用内容代码
<script language=”JavaScript”>
<!--
var myArray = Array(5);
myArray[0] = “z”;
myArray[1] = “c”;
myArray[2] = “d”;
myArray[3] = “a”;
myArray[4] = “q”;
document.write(myArray.sort);
// -->
</script>

14 分割串
引用内容代码
<script language=”JavaScript”>
<!--
var myVariable = “a,b,c,d”;
var Array = myVariable.split(“,”);
document.write(Array[0]);
document.write(Array[1]);
document.write(Array[2]);
document.write(Array[3]);
// -->
</script>

15 弹出警告信息
引用内容代码
<script language=”JavaScript”>
<!--
window.alert(“Hello”);
// -->
</script>

16 弹出确认框
引用内容代码
<script language=”JavaScript”>
<!--
var result = window.confirm(“Click OK to continue”);
// -->
</script>

17 自定义
引用内容代码
<script language=”JavaScript”>
<!--
function multiple(number1,number2) {
var result = number1 * number2;
result;
}
// -->
</script>

18 JS
引用内容代码
<afunctionName"”>Link text</a>

19 在页面加载完成后执行
引用内容代码
<body _disibledevent="/”140b.html"”>
</frame>
Tags:  javascript教程 javascript js代码整理 jsjavascript

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