js 正則表達式一看就懂

window.οnlοad=function(){
		//RegExp

		var text='000-00-0000';
		var pattern=/\d{3}-\d{2}-\d{3}/;
		//alert(pattern.test(text));//true
		if(pattern.test(text)){
			console.log("ok");
		};

		var text='mom and dad and baby';
		var pattern=/mom?/gi;
		console.log(pattern.exec(text));

		//match and search 方法就是將上邊的順序倒過來

		var text='000-00-0000';
		var pattern=/\d{3}-\d{2}-\d{3}/;
		//alert(text.search(pattern));//true
		if(pattern.test(text)){
			console.log("ok");
		};

		var text='mom and dad and baby';
		var pattern=/mom?/gi;
		console.log(text.match(pattern));

		//replace
		var text='mom and dad and baby';
		var pattern=/mom?/gi;

		alert(text.replace("om","lio"));//把是替換成誰
		console.log(text.replace(/d/g,"lio"));//替換所有

	};