RegExp.prototype.compile()

The deprecated compile() method is used to (re-)compile a regular expression during execution of a script. It is basically the same as the RegExp constructor.

pattern

The text of the regular expression.

flags

If specified, flags can have any combination of the following values:

g

global match

i

ignore case

m

multiline; treat beginning and end characters (^ and $) as working over multiple lines (i.e., match the beginning or end of each line (delimited by \n or \r), not only the very beginning or end of the whole input string)

y

sticky; matches only from the index indicated by the lastIndex property of this regular expression in the target string (and does not attempt to match from any later indexes).

The compile method is deprecated. You can just use the RegExp constructor to achieve the same effect.

The following example shows how to recompile a regular expression with a new pattern and a new flag.

var regexObj = new RegExp('foo', 'gi');
regexObj.compile('new foo', 'g');

• RegExp