String.prototype.match()

0
11K

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]().

Căutare
Categorii
Citeste mai mult
Programming
Chakra UI Pros & Cons
What is Chakra UI? It is a simple, modular, and accessible component library that gives you all...
By Jesse Thomas 2023-06-13 20:50:28 0 13K
Business
Product Reviews and Ratings: "How do I leave a review?" or "Where can I read product feedback?"
In today's digital shopping world, product reviews and ratings are essential tools for both...
By Dacey Rankins 2025-05-29 17:50:54 0 8K
Ужасы
Чужой. Alien. (1979)
В далеком будущем возвращающийся на Землю грузовой космический корабль перехватывает исходящий с...
By Nikolai Pokryshkin 2022-12-09 13:14:12 1 32K
Mental Health
Autism Spectrum - Early Life
Early lifeSeveral prenatal and perinatal complications have been reported as possible risk...
By Kelsey Rodriguez 2023-02-22 17:19:57 0 13K
Darts
The Art of Darts: Precision, Strategy, and Skill
Darts, a game steeped in tradition yet evolving with the times, continues to captivate...
By Dacey Rankins 2024-06-20 18:56:44 0 18K

BigMoney.VIP Powered by Hosting Pokrov