JS Advanced --- regular expressions using other methods

Regular expressions use other methods

•     The regular expression: g represents the global pattern matching
•     Regular expressions: i represents the Ignore case

 

    var STR = "China Mobile: 10086, China Unicom: 10010, China Telecom: 10000" ;
     // put all numbers displayed inside out all 
    var Array str.match = (/ \. 5} {D / G);
    console.log(array);

 

    // extracted here date 
       var STR = "2017-11-12" ;
        var Array str.match = (/ (\ {D}. 4) [-] (\ D {2}) [-] (\ D {2 }) / G);
        // the console.log (Array); 
       // regular expression object. 3 $. 
       the console.log (the RegExp $. 3).;

 

    var email = "[email protected]";
    email.match ( / ([0-9a-zA-Z _.-] +) [@] ([0-9a-zA-Z _-] +) (([.] [a-zA-Z] +) { 1,2}) / );
    console.log ($ RegExp. 1); // username 
    console.log (RegExp $ 2.); // 126 
    console.log (RegExp $ 3.); // domain name

 

    var str = "Little Su Shuaio good, really handsome, handsome, that is so cool" ;
    STR = str.replace (/ handsome / g, "smart" );
    console.log(str);

    var str = "Oh buy the Karma, too happy" ;
    str = str.trim ();
    console.log("===" + str + "===");


    var str = "Oh buy the Karma, too happy" ;
    str = str.replace(/\s+/g, "");
    console.log("===" + str + "===");

 

 

 

    // All are replaced h S 
    var REG = new new the RegExp (/ [h] / GI);
     var STR = "HhpphH"; // SSppSS 
    STR = str.replace (REG, "S" );
    console.log(str);

 

    var STR = "China Mobile: 10086, China Unicom: 10010, China Telecom: 10000" ;
     var REG = / \ {D}. 5 / G;
     // regular expression matching string 
    var Array = reg.exec (STR );
     the while ! (Array = null ) {
       // output content that matches 
      the console.log (Array [0 ]);
      array = reg.exec(str);
    }