JavaScript方法大全.docx
- 文档编号:8117990
- 上传时间:2023-01-28
- 格式:DOCX
- 页数:20
- 大小:20.73KB
JavaScript方法大全.docx
《JavaScript方法大全.docx》由会员分享,可在线阅读,更多相关《JavaScript方法大全.docx(20页珍藏版)》请在冰豆网上搜索。
JavaScript方法大全
JavaScript就这么回事1:
基础知识
1创建脚本块
1:
2:
JavaScriptcodegoeshere
3:
2隐藏脚本代码
1:
2:
--
3:
document.write(“Hello”);
4:
//-->
5:
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:
2:
Hellotothenon-JavaScriptbrowser.
3:
4链接外部脚本文件
1:
5注释脚本
1:
//Thisisacomment
2:
document.write(“Hello”);//Thisisacomment
3:
/*
4:
Allofthis
5:
isacomment
6:
*/
6输出到浏览器
1:
document.write(“Hello”);
7定义变量
1:
varmyVariable=“somevalue”;
8字符串相加
1:
varmyString=“String1”+“String2”;
9字符串搜索
1:
2:
--
3:
varmyVariable=“Hellothere”;
4:
vartherePlace=myVariable.search(“there”);
5:
document.write(therePlace);
6:
//-->
7:
10字符串替换
1:
thisVar.replace(“Monday”,”Friday”);
11格式化字串
1:
2:
--
3:
varmyVariable=“Hellothere”;
4:
document.write(myVariable.big()+“
”);
5:
document.write(myVariable.blink()+“
”);
6:
document.write(myVariable.bold()+“
”);
7:
document.write(myVariable.fixed()+“
”);
8:
document.write(myVariable.fontcolor(“red”)+“
”);
9:
document.write(myVariable.fontsize(“18pt”)+“
”);
10:
document.write(myVariable.italics()+“
”);
11:
document.write(myVariable.small()+“
”);
12:
document.write(myVariable.strike()+“
”);
13:
document.write(myVariable.sub()+“
”);
14:
document.write(myVariable.sup()+“
”);
15:
document.write(myVariable.toLowerCase()+“
”);
16:
document.write(myVariable.toUpperCase()+“
”);
17:
18:
varfirstString=“MyString”;
19:
varfinalString=firstString.bold().toLowerCase().fontcolor(“red”);
20:
//-->
21:
12创建数组
1:
2:
--
3:
varmyArray=newArray(5);
4:
myArray[0]=“FirstEntry”;
5:
myArray[1]=“SecondEntry”;
6:
myArray[2]=“ThirdEntry”;
7:
myArray[3]=“FourthEntry”;
8:
myArray[4]=“FifthEntry”;
9:
varanotherArray=newArray(“FirstEntry”,”SecondEntry”,”ThirdEntry”,”FourthEntry”,”FifthEntry”);
10:
//-->
11:
13数组排序
1:
2:
--
3:
varmyArray=newArray(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:
14分割字符串
1:
2:
--
3:
varmyVariable=“a,b,c,d”;
4:
varstringArray=myVariable.split(“,”);
5:
document.write(stringArray[0]);
6:
document.write(stringArray[1]);
7:
document.write(stringArray[2]);
8:
document.write(stringArray[3]);
9:
//-->
10:
15弹出警告信息
1:
2:
--
3:
window.alert(“Hello”);
4:
//-->
5:
16弹出确认框
1:
2:
--
3:
varresult=window.confirm(“ClickOKtocontinue”);
4:
//-->
5:
17定义函数
1:
2:
--
3:
functionmultiple(number1,number2){
4:
varresult=number1*number2;
5:
returnresult;
6:
}
7:
//-->
8:
18调用JS函数
1:
2:
functionName"()”>Linktext 19在页面加载完成后执行函数 1: 2: Bodyofthepage 3: