js正則函數match、exec、test

轉  http://mogo4157.blog.163.com/blog/static/82790348201332543815135/

1. match (普通匹配)

var input = "task status"; var regex1 = /a/; var regex2 = /b/; var result1 = input.match(regex1); var result2 = input.match(regex1); var result3 = input.match(regex2)

2. match (全局匹配)
var input = "task status";
var regex1 = /a/g;
var regex2 = /b/g;
var result1 = input.match(regex1);
var result2 = input.match(regex1);
var result3 = input.match(regex2);

3. test(普通匹配)

var input = "task"; var regex1 = /a/; var regex2 = /b/; var result1 = regex1.test(input); var result2 = regex1.test(input); var result3 = regex2.test(input);

4.test(全局匹配)

var input = "task"; var regex1 = /a/g; var regex2 = /b/g; var result1 = regex1.test(input); var result2 = regex1.test(input); var result3 = regex2.test(input);

5.exec （普通匹配）
	var input = "task";
	var regex1 = /a/;
	var regex2 = /b/;
	var result1 = regex1.exec(input);
	var result2 = regex1.exec(input);
	var result3 = regex2.exec(input);

6.exec（全局匹配）

var input = "task"; var regex1 = /a/g; var regex2 = /b/g; var result1 = regex1.exec(input); var result2 = regex1.exec(input); var result3 = regex2.exec(input);