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JavaScript compile() Method

❮ JavaScript RegExp Object

Example

Do a global search for "man" in a string, and replace it with "person". Then change the regular expression and replace either "man" or "woman" with "person", with the compile() method:

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);
Try it Yourself »

Definition and Usage

The compile() method was deprecated in JavaScript version 1.5.

The compile() method is used to compile a regular expression during execution of a script.

The compile() method can also be used to change and recompile a regular expression.


Browser Support

Expression
[abc] Yes Yes Yes Yes Not supported

Syntax

RegExpObject.compile(regexp, modifier)

Parameter Values

Parameter Description
regexp A regular expression
modifier Specifies the type of matching. "g" for a global match, "i" for a case-insensitive match and "gi" for a global, case-insensitive match

❮ JavaScript RegExp Object