String.prototype.match()

0
4كيلو بايت

A regular expression object, or any object that has a Symbol.match method.

If regexp is not a RegExp object and does not have a Symbol.match method, it is implicitly converted to a RegExp by using new RegExp(regexp).

If you don't give any parameter and use the match() method directly, you will get an Array with an empty string: [""], because this is equivalent to match(/(?:)/).

Return value

An Array whose contents depend on the presence or absence of the global (g) flag, or null if no matches are found.

  • If the g flag is used, all results matching the complete regular expression will be returned, but capturing groups are not included.
  • If the g flag is not used, only the first complete match and its related capturing groups are returned. In this case, match() will return the same result as RegExp.prototype.exec() (an array with some extra properties).

Description

The implementation of String.prototype.match itself is very simple — it simply calls the Symbol.match method of the argument with the string as the first parameter. The actual implementation comes from RegExp.prototype[@@match]().

For more information about the semantics of match() when a regex is passed, see RegExp.prototype[@@match]().

البحث
الأقسام
إقرأ المزيد
Television
PLAYTV by Brightcove.
Learn how to navigate all types of communication with PLAYTV by Brightcove. Featuring a curated...
بواسطة Nikolai Pokryshkin 2023-05-13 12:52:08 0 24كيلو بايت
Small Business
How to open a business in the United States as a foreigner remotely
How to open a business in the United States as a foreigner remotely If you...
بواسطة Leonard Pokrovski 2024-03-18 19:13:10 0 17كيلو بايت
Business
Data Fabric
Data Fabric The concept of Data Fabric and the main elements of this concept It is an...
بواسطة Leonard Pokrovski 2024-08-26 21:59:54 0 8كيلو بايت
Public Health and Safety
Public health management is the process of managing a complex system
Public health management is the process of managing a complex system Public health is the...
بواسطة Leonard Pokrovski 2024-04-19 00:45:25 0 8كيلو بايت
Coin-Op
Arcade machines: a little history of development
Now gamers, without leaving home or even looking up from their mobile device, can start computer...
بواسطة Michael Pokrovski 2024-04-03 21:08:20 0 8كيلو بايت
image/svg+xml


BigMoney.VIP Powered by Hosting Pokrov