javascript复习4：RegExp

var patt1=new RegExp("e");document.write(patt1.test("The best things in life are free"));

var patt1=new RegExp("e");document.write(patt1.exec("The best things in life are free"));

var patt1=new RegExp("e","g");do{result=patt1.exec("The best things in life are free");document.write(result);}while (result!=null)

var patt1=new RegExp("e");document.write(patt1.test("The best things in life are free"));patt1.compile("d");document.write(patt1.test("The best things in life are free"));

var str = "Visit W3School";var patt1 = /w3school/i;var patt2 = new RegExp("w3school","i")document.write(str.match(patt1));

var str="Is this all there is?";var patt1=/is/gi;document.write(str.match(patt1));

var str="Is this all there is?";var patt1=/[a-h]/g;var patt2=new RegExp("[a-h]","g")document.write(str.match(patt1));

var str="Is this all there is?";var patt1=/[^a-h]/g;document.write(str.match(patt1));

var str="Give 100%!"; var patt1=/\w/g;document.write(str.match(patt1));

var str="Give 100%!"; var patt1=/\d/g;document.write(str.match(patt1));

var str="Visit W3School.\n Learn JavaScript."; var patt1=/\n/g;document.write(str.search(patt1));

var str="1, 100 or 1000?"; var patt1=/10?/g;document.write(str.match(patt1));

var str="100, 1000 or 10000?";var patt1=/\d{4}/g; document.write(str.match(patt1));

var str="Is this all there is";var patt1=/is(?= all)/;document.write(str.match(patt1));