Regular Expression \ W metacharacters usage, regular expression usage

Source: Internet
Author: User

Regular Expression \ W metacharacters usage, regular expression usage

Regular Expression \ W metacharacters:
\ W (uppercase) is used to match non-word characters, which is equivalent to "[^ a-zA-Z0-9 _]".

Syntax structure:

Constructor method:

New RegExp ("\ W ")

Method of direct object volume:

/\ W/

Browser support:
Internet Explorer supports this metacharacter.
Firefox supports this metacharacter.
Google Chrome supports this metacharacter.

Instance code:

Instance 1:

Var str = "antzone <12> love"; var reg = new RegExp ("\ W", "g"); console. log (str. match (reg ))

The above code can match all characters except word characters.

Example 2:

Var str = "antzone <12> love"; var reg =/\ W/g; console. log (str. match (reg ));

The above code can also be used for instance 1.

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