JavaScript compile () method
JavaScript RegExp Object Definition and Usage
compile () method is used during the execution of the script compiled regular expression.
compile () method can also be used to change and recompile the regular expression.
grammar
RegExpObject.compile(regexp,modifier)
| 参数 | 描述 |
|---|---|
| regexp | 正则表达式。 |
| modifier | 规定匹配的类型。"g" 用于全局匹配，"i" 用于区分大小写，"gi" 用于全局区分大小写的匹配。 |
Browser Support
In addition to the Opera browser, the other browsers support compile () method.
Examples
Examples
In the global search for the string "man", and replaced with "person". Then compile () method to change the regular expression, use "person" to replace "man" or "woman" ,:
<script>
var str="Every man in the world! Every woman on earth!";
var patt=/man/g;
var str2=str.replace(patt,"person");
document.write(str2+"<br>");
patt=/(wo)?man/g;
patt.compile(patt);
str2=str.replace(patt,"person");
document.write(str2);
</script>
var str="Every man in the world! Every woman on earth!";
var patt=/man/g;
var str2=str.replace(patt,"person");
document.write(str2+"<br>");
patt=/(wo)?man/g;
patt.compile(patt);
str2=str.replace(patt,"person");
document.write(str2);
</script>
Examples of the above output:
Every person in the world! Every woperson on earth!
Every person in the world! Every person on earth!
Every person in the world! Every person on earth!
try it"
JavaScript RegExp Object