-
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()
Veröffentlicht 2023-05-31 22:12:41
0
8KB
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]()
.
Suche
Kategorien
- Arts
- Business
- Computers
- Spiele
- Health
- Startseite
- Kids and Teens
- Geld
- 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
Mehr lesen
What Are the Initial Steps to Start a Business?
Starting a business is an exciting and rewarding endeavor, but it can also be overwhelming if you...
Your 401(k): 10 things to find out
1. When can I start contributing?
Not every 401(k) plan allows new employees to begin...
Photography
Photography art is the photography-based art of creating a photograph that reflects the creative...
40 Top Job Interview Questions (and How to Answer Them)
Job interviews can be nerve-wracking, but preparation makes all the difference. Whether...
ADHD: History
Hyperactivity has long been part of the human condition. Sir Alexander Crichton describes "mental...