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var reCat = new RegExp("cat");
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var reCat = /cat/; //Perl ·ç¸ñ £¨ÍƼö£©
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1£© test ¼ì²éÖ¸¶¨µÄ×Ö·û´®ÊÇ·ñ´æÔÚ
var data = "123123";
var reCat = /123/gi;
alert(reCat.test(data)); //true
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2£© exec ·µ»Ø²éѯֵ
var data = "123123,213,12312,312,3,Cat,cat,dsfsdfs,";
var reCat = /cat/i;
alert(reCat.exec(data)); //Cat
3£©match µÃµ½²éѯÊý×é
var data = "123123,213,12312,312,3,Cat,cat,dsfsdfs,";
var reCat = /cat/gi;
var arrMactches = data.match(reCat)
for (var i=0;i < arrMactches.length ; i++)
{
alert(arrMactches[i]); //Cat cat
}
4£© search ·µ»ØËÑË÷λÖà ÀàËÆÓÚindexof
var data = "123123,213,12312,312,3,Cat,cat,dsfsdfs,";
var reCat = /cat/gi;
alert(data.search(reCat)); //23
5£© replace Ìæ»»×Ö·û ÀûÓÃÕýÔòÌæ»»
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