-
A regular expression object, or any object that has a
Symbol.match
method.If
regexp
is not aRegExp
object and does not have aSymbol.match
method, it is implicitly converted to aRegExp
by usingnew RegExp(regexp)
.If you don't give any parameter and use the
match()
method directly, you will get anArray
with an empty string:[""]
, because this is equivalent tomatch(/(?:)/)
.
String.prototype.match()
Postado 2023-05-31 22:12:41
0
7K
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 asRegExp.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]()
.
- If you need to know if a string matches a regular expression
RegExp
, useRegExp.prototype.test()
. - If you only want the first match found, you might want to use
RegExp.prototype.exec()
instead. - If you want to obtain capture groups and the global flag is set, you need to use
RegExp.prototype.exec()
orString.prototype.matchAll()
instead.
For more information about the semantics of match()
when a regex is passed, see RegExp.prototype[@@match]()
.
Pesquisar
Categorias
- Arts
- Business
- Computers
- Jogos
- Health
- Início
- Kids and Teens
- Money
- News
- Recreation
- Reference
- Regional
- Science
- Shopping
- Society
- Sports
- Бизнес
- Деньги
- Дом
- Досуг
- Здоровье
- Игры
- Искусство
- Источники информации
- Компьютеры
- Наука
- Новости и СМИ
- Общество
- Покупки
- Спорт
- Страны и регионы
- World
Leia Mais
Windows OS will be transferred to the "cloud"
Microsoft has planned to completely transfer the Windows operating system (OS) to the "cloud"...
What Platforms Are Popular in the Creator Economy?
The Creator Economy has exploded in recent years, with countless platforms offering creators new...
Поющие под дождём. Singin' in the Rain. (1952)
Основа этого легендарного фильма – дюжина старых песен, написанных для различных...
How to design a Room
Whether you don’t have the budget to hire an interior designer or simply enjoy the idea of...
Exploring the Elegance and Intensity of Squash: A Sport for the Agile and Strategic
Squash, often dubbed the "fastest racket sport," is an exhilarating and demanding game that...