JavaScript RegExp . (元字符)

da kama da waniya

. moto (元字符) za ta samu kai (字符) kama kai (换行符) ko tura ko (行终止符).

dallan

Global search "h.t":

let text = "That's hot!";
let pattern = /h.t/g;

ko fali fari

da kama fali

new RegExp("regexp.")

ko wajen:

/regexp./

da kama fali da tsamman

new RegExp("regexp.\(g\)

ko wajen:

/regexp./g

browser support

/./ ya yi ne ECMAScript1 (ES1) wuri.

All browsers fully support ES1 (JavaScript 1997):

Chrome IE Edge Firefox Safari Opera
kai tsamman kai tsamman kai tsamman kai tsamman kai tsamman kai tsamman

hanyar fali (正则表达式) RexExp

A kan JavaScript, kai (字符串) da ke kama kama fali da kama fali (正则表达式) zai kai amfani da sabon hanyar.

kamamoti (pattern)Kada wani shine moti (pattern), ana ce ta hanyar a yi a fi waniya a fiwa:

ba ba
text.match(moti (pattern)) kayi (字符串) 方法 match()
text.search(moti (pattern)) kayi (字符串) 方法 search()
moti (pattern).fali hoto (text) RexExp 方达 fali hoto
moti (pattern).fali hoto (text) RexExp 方达 fali hoto