1 创建脚本块

1: <scrīpt language=”Javascrīpt”>
2: Javascrīpt code goes here
3: </scrīpt>

2 隐藏脚本代码

1: <scrīpt language=”Javascrīpt”>
2: <!–
3: document.write(“Hello”);
4: // –>
5: </scrīpt>
在不支持Javascrīpt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: <noscrīpt>
2: Hello to the non-Javascrīpt browser.
3: </noscrīpt>

4 链接外部脚本文件

1: <scrīpt language=”Javascrīpt” src=”/”filename.js” mce_src=”/”filename.js””></scrīpt>
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: <scrīpt language=”Javascrīpt”>
2: <!–
3: var myVariable = “Hello there”;
4: var therePlace = myVariable.search(“there”);
5: document.write(therePlace);
6: // –>
7: </scrīpt>

10 字符串替换

1: thisVar.replace(“Monday”,”Friday”);

11 格式化字串1: <scrīpt language=”Javascrīpt”>
2: <!–
3: var myVariable = “Hello there”;
4: document.write(myVariable.big() + “<br>”);
5: document.write(myVariable.blink() + “<br>”);
6: document.write(myVariable.bold() + “<br>”);
7: document.write(myVariable.fixed() + “<br>”);
8: document.write(myVariable.fontcolor(“red”) + “<br>”);
9: 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:
18: var firstString = “My String”;
19: var finalString = firstString.bold().toLowerCase().fontcolor(“red”);
20: // –>
21: </scrīpt>

12 创建数组1: <scrīpt language=”Javascrīpt”>
2: <!–
3: var myArray = new Array(5);
4: myArray[0] = “First Entry”;
5: myArray[1] = “Second Entry”;
6: myArray[2] = “Third Entry”;
7: myArray[3] = “Fourth Entry”;
8: myArray[4] = “Fifth Entry”;
9: var anotherArray = new Array(“First Entry”,”Second Entry”,”Third Entry”,”Fourth Entry”,”Fifth Entry”);
10: // –>
11: </scrīpt>

13 数组排序

1: <scrīpt language=”Javascrīpt”>
2: <!–
3: var myArray = new Array(5);
4: myArray[0] = “z”;
5: myArray[1] = “c”;
6: myArray[2] = “d”;
7: myArray[3] = “a”;
8: myArray[4] = “q”;
9: document.write(myArray.sort());
10: // –>
11: </scrīpt>

14 分割字符串

1: <scrīpt language=”Javascrīpt”>
2: <!–
3: var myVariable = “a,b,c,d”;
4: var stringArray = myVariable.split(“,”);
5: document.write(stringArray[0]);
6: document.write(stringArray[1]);
7: document.write(stringArray[2]);
8: document.write(stringArray[3]);
9: // –>
10: </scrīpt>

15 弹出警告信息

1: <scrīpt lang