Deprecated
This feature is no longer recommended. Though some browsers might still support it, it may have already been removed from the relevant web standards, may be in the process of being dropped, or may only be kept for compatibility purposes. Avoid using it, and update existing code if possible; see the compatibility table at the bottom of this page to guide your decision. Be aware that this feature may cease to work at any time.
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.
Syntax
regexObj.compile(pattern, flags)
Parameters
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).
Description
The compile
method is deprecated. You can just use the RegExp
constructor to achieve the same effect.
Examples
Using compile()
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');
Specifications
Specification |
---|
ECMAScript (ECMA-262) The definition of 'RegExp.prototype.compile' in that specification. |
Browser compatibility
Desktop | Mobile | Server | |||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
compile | Chrome Full support 1 | Edge Full support 12 | Firefox Full support 1 | IE Full support 4 | Opera Full support 6 | Safari Full support 3.1 | WebView Android Full support 1 | Chrome Android Full support 18 | Firefox Android Full support 4 | Opera Android Full support 10.1 | Safari iOS Full support 2 | Samsung Internet Android Full support 1.0 | nodejs Full support Yes |
Legend
- Full support
- Full support
- Deprecated. Not for use in new websites.
- Deprecated. Not for use in new websites.