javascript正規表現の数量詞、文字列の方法(match、search、replace、split)、貪欲モード、惰性モードのまとめ

        var str = "Google";
	var pattern = /Google/;
	alert(pattern.test(str))

	var str = "Go#gle";
	var pattern = /Go.gle/;  //.       
             
	alert(pattern.test(str))
  
	var str = "Goooogle";
	var pattern = /Go*gle/;  //*                
	alert(pattern.test(str))
	
	var str = "Gogle";
	var pattern = /Go+gle/;  //+               
	alert(pattern.test(str));

	var str = "Gogle";
	var pattern = /Go?gle/; //?              
	alert(pattern.test(str));
	
	var str = "Google";
	var pattern = /Go{1,2}/;  //        1-2 
	alert(pattern.test(str));
	
	var str = "Google";
	var pattern = /^[a-zA-Z]{1}oogle/;
	alert(pattern.test(str));

        var str = "This is an Apple, That is an Apple";
	var pattern = /Apple/g;
	alert(str.match(pattern)); //       ，      ，      ，  null
	
	var str = "That is an Apple";
	var pattern = /Apple/;
	alert(str.search(pattern));  //            ，       -1

	var str = "This is an Apple, That is an Apple";
	var pattern = /Apple/;
	alert(str.replace(pattern,"Banana"));
	
	var str = "This is an Apple";
	var pattern = /\s/;
	alert(str.split(pattern));  //     

	var str = "javascriptjavascriptjavascript";
	var pattern = /^(javascript){2,3}$/;
	alert(pattern.test(str));    //    2-3 

	var str = "6baidu6";
	var pattern = /6(.*)6/;
	document.write(str.replace(pattern,"<b>$1</b>"));

	var str = "baidu google";
	var pattern = /(\w*)\s(\w*)/;
	document.write(str.replace(pattern,'$2 $1'));  //$1             ，$2               

        var str = "asdfasdf";      
	var pattern = /[a-z]+/;   //    
	alert(str.replace(pattern,"1"));
        //  ： 1

	var str = "asdfasdf";      
	var pattern = /[a-z]+?/;   //    ，       ？
	alert(str.replace(pattern,"1"));
	//  ：1sdfasdf 

	var str = "asdfaef";
	var pattern = /[a-z]+/g;   //    ,      
	alert(str.replace(pattern,"1"));
	//  ： 1
	
	var str = "asdfaef";
	var pattern = /[a-z]+?/g;   //    ,      
	alert(str.replace(pattern,"1"));
	//  ： 1111111