Regular Expression I modifier (Case Insensitive), regular expression case

Source: Internet
Author: User

Regular Expression I modifier (Case Insensitive), regular expression case

Regular Expression I modifier:

The I modifier specifies that regular expression matching is case insensitive.

Syntax structure:

Constructor method:

New RegExp ("regexp", "I ")

Method of direct object volume:

/Regexp/I

Browser support:

Internet Explorer supports this metacharacter.
Firefox supports this metacharacter.
Google Chrome supports this metacharacter.

Instance code:

Var str = "This is an antzone good"; var reg =/this/; console. log (str. match (reg ));

The above Code cannot match any content because it is case sensitive.

Var str = "This is an antzone good"; var reg =/this/I; console. log (str. match (reg ))

The above code can be matched successfully because it is case insensitive.

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