文档介绍：Javascript入门(可供CSS/JS/XSS初学者参考)
JavaScript作用小结:
创建脚本块
1: <script language=”JavaScript”>
2: JavaScript code goes here
3: </script>
隐藏脚本代码
1: <script language=”JavaScript”>
2: <!--
3: (“Hello”);
4: // -->
5: </script>
在不支持JavaScript的浏览器中将不执行相关代码
浏览器不支持的时候显示
1: <noscript>
2: Hello to the non-JavaScript browser.
3: </noscript>
链接外部脚本文件
1: <script language=”JavaScript” src="/”"”></script>
注释脚本
1: // This is ment
2: (“Hello”); // This is ment
3: /*
4: All of this
5: is ment
6: */
输出到浏览器
1: (“<strong>Hello</strong>”);
定义变量
1: var myVariable = “some value”;
字符串相加
1: var myString = “String1”+ “String2”;
字符串搜索
1: <script language=”JavaScript”>
2: <!--
3: var myVariable = “Hello there”;
4: var therePlace = (“there”);
5: (therePlace);
6: // -->
7: </script>
字符串替换
1: (“Monday”,”Friday”);
格式化字串
1: <script language=”JavaScript”>
2: <!--
3: var myVariable = “Hello there”;
4: (() + “<br>”);
5: (() + “<br>”);
6: (() + “<br>”);
7: (() + “<br>”);
8: ((“red”) + “<br>”);
9: ((“18pt”) + “<br>”);
10: (() + “<br>”);
11: (() + “<br>”);
12: (() + “<br>”);
13: (() + “<br>”);
14: (() + “<br>”);
15: (() + “<br>”);
16: (() + “<br>”);
17:
18: var firstString = “My String”;
19: var finalString = ().toLowerCase().fontcolor(“red”);
20: // -->
21: </script>
创建数组
1: <script language=”JavaScript”>
2: <!--
3: var myArray = new Array(5);
4: myArray[0] = “First Entry”;
5: myArray[1] = “Second Entry”;
6: myArray[2] = “Third Entr