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Javascript
JavaScript 继承详解(四)
兼容IE/Firefox/Opera/Safari的检测页面装载完毕的脚本Ext.onReady的实现
js 实现无缝滚动 兼容IE和FF
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优化 JavaScript 代码的方法小结
表单元素事件 (Form Element Events)
js 动态创建 html元素
prototype 学习笔记整理
JavaScript 创建对象
javascript 全角转换实现代码
DOM 基本方法
用showModalDialog弹出页面后,提交表单总是弹出一个新窗口
javascript 动态创建 Option选项
javascript 7行代码画出一个围棋棋盘
比较简单的异步加载JS文件的代码
javascript 层隐藏和显示的代码
自定义滚动条3.0
javascript iframe内的函数调用实现方法
Prototype Class对象学习
Prototype RegExp对象 学习

Javascript 中的 JavaScript基本入门语法集合


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对于新手来说,掌握下面的方法,基本上就可以自己些js了,入门必备 创建脚本块
<script language=”JavaScript”>
JavaScript code goes here
</script>
隐藏脚本代码
<script language=”JavaScript”>
<!--
document.write(“Hello”);
// -->
</script>
浏览器不支持的时候显示
<noscript>
Hello to the non-JavaScript browser.
</noscript>
链接外部脚本文件
<script language=”JavaScript” src="/”youname.js"”></script>
注释脚本
// This is a comment
document.write(“Hello”); // This is a comment
/*
All of this
is a comment
*/
输出到浏览器
document.write(“<strong>输出内容</strong>”);
定义变量
var myVariable = “some value”;
字符串相加
var myString = “String1” + “String2”;
字符串搜索
<script language=”JavaScript”>
<!--
var myVariable = “Hello there”;
var therePlace = myVariable.search(“there”);
document.write(therePlace);
// -->
</script>
字符串替换
thisVar.replace(“Monday”,”Friday”);
对于新手来说,掌握下面的方法,基本上就可以自己些js了,入门必备
格式化字串
<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>
创建数组
<script language=”JavaScript”>
<!--
var myArray = new Array(5);
myArray[0] = “First Entry”;
myArray[1] = “Second Entry”;
myArray[2] = “Third Entry”;
myArray[3] = “Fourth Entry”;
myArray[4] = “Fifth Entry”;
var anotherArray = new Array(“First Entry”,”Second Entry”,”Third Entry”,”Fourth Entry”,”Fifth Entry”);
// -->
</script>
数组排序
<script language=”JavaScript”>
<!--
var myArray = new Array(5);
myArray[0] = “z”;
myArray[1] = “c”;
myArray[2] = “d”;
myArray[3] = “a”;
myArray[4] = “q”;
document.write(myArray.sort());
// -->
</script>
分割字符串
<script language=”JavaScript”>
<!--
var myVariable = “a,b,c,d”;
var stringArray = myVariable.split(“,”);
document.write(stringArray[0]);
document.write(stringArray[1]);
document.write(stringArray[2]);
document.write(stringArray[3]);
// -->
</script>
对于新手来说,掌握下面的方法,基本上就可以自己些js了,入门必备
弹出警告信息
<script language=”JavaScript”>
<!--
window.alert(“Hello”);
// -->
</script>
弹出确认框
<script language=”JavaScript”>
<!--
var result = window.confirm(“Click OK to continue”);
// -->
</script>
定义函数
<script language=”JavaScript”>
<!--
function multiple(number1,number2) {
var result = number1 * number2;
return result;
}
// -->
</script>
调用JS函数
<a href=”#” onClick=”functionName()”>Link text</a>
<a href="/”javascript:functionName"()”>Link text</a>
在页面加载完成后执行函数
<body onLoad=”functionName();”>
Body of the page
</body>
条件判断
<script>
<!--
var userChoice = window.confirm(“Choose OK or Cancel”);
var result = (userChoice == true) ? “OK” : “Cancel”;
document.write(result);
// -->
</script>
指定次数循环
<script>
<!--
var myArray = new Array(3);
myArray[0] = “Item 0”;
myArray[1] = “Item 1”;
myArray[2] = “Item 2”;
for (i = 0; i < myArray.length; i++) {
document.write(myArray + “<br>”);
}
// -->
</script>
设定将来执行
<script>
<!--
function hello() {
window.alert(“Hello”);
}
window.setTimeout(“hello()”,5000);
// -->
</script>
定时执行函数
<script>
<!--
function hello() {
window.alert(“Hello”);
window.setTimeout(“hello()”,5000);
}
window.setTimeout(“hello()”,5000);
// -->
</script>
取消定时执行
<script>
<!--
function hello() {
window.alert(“Hello”);
}
var myTimeout = window.setTimeout(“hello()”,5000);
window.clearTimeout(myTimeout);
// -->
</script>
在页面卸载时候执行函数
<body onUnload=”functionName();”>
Body of the page
</body>