JavaScript RegExp m Modifier
Example
Do a multiline search for "is" at the beginning of each line in a string:
var str = "\nIs th\nis it?";
var patt1 = /^is/m;
The marked text below shows where the expression gets a match:
Is th
is it?
Try it Yourself »
Definition and Usage
The m modifier is used to perform a multiline match.
The m modifier treat beginning (^) and end ($) characters to match the beginning or end of each line of a string (delimited by \n or \r), rather than just the beginning or end of the string.
Note: The m modifier is case-sensitive and will stop the search after the first match. To perform a global, case-insensitive, multiline search, use this modifier together with "g" and "i".
Tip: Use the multiline property to specify whether or not the m modifier is set.
Browser Support
| Expression | |||||
|---|---|---|---|---|---|
| m | Yes | Yes | Yes | Yes | Yes |
Syntax
new RegExp("regexp","m")
or simply:
/regexp/m
Technical Details
| JavaScript Version: | 1.5 |
|---|
More Examples
Example
Do a global, multiline search for "is" at the beginning of each line in a string:
var str = "\nIs th\nis h\nis?";
var patt1 = /^is/gm;
The marked text below shows where the expression gets a match:
Is th
is h
is?
Try it Yourself »
Example
Do a global, case-insensitive, multiline search for "is" at the beginning of each line in a string:
var str = "\nIs th\nis h\nis?";
var patt1 = /^is/gmi;
The marked text below shows where the expression gets a match:
Is th
is h
is?
Try it Yourself »
Example
Do a global, multiline search for "is" at the end of each line in a string:
var str = "Is\nthis\nhis\n?";
var patt1 = /is$/gm;
The marked text below shows where the expression gets a match:
Is
this
his
?
Try it Yourself »
JavaScript RegExp Object
