Mukaddashi \W na JavaScript RegExp
- Raba ɗanɗin na baya \w
- Raba ɗanɗin na tsakiyar \d
- Raba ɗanɗin na biyu Kita'a na JavaScript RegExp
Tafiyar da amfani
\W Mukaddashi yana girmama kwayar dake:
Kwayar dake na iya yin amfani da kwayar a-ha, A-Ha, 0-9, kuma ya kuma yin amfani da _ (tashoshin).
Ganin da yauwan
new RegExp("\\W")
ko yake:
/\W/
Ganin da yauwan kuma
new RegExp("\\W", "g")
ko yake:
/\W/g
Girmama kewayen
/\W/ ya kasance gaskiya ECMAScript1 (ES1).
Ganin da yauwan duk kewayen ake girmama cikin ES1 (JavaScript 1997):
| Chrome | IE | Edge | Firefox | Safari | Opera |
|---|---|---|---|---|---|
| a yi | a yi | a yi | a yi | a yi | a yi |
Hanyoyin rexepreshiyi na gaskiya
Ganin da yauwan JavaScript, a yauwan rexepreshiyi a yi kara a yi kara da gaskiya ake amfani da manyan hanyoyin.
a yimataki (pattern)Ganin da yauwan gaskiya, wadannan na a yi kara a kan shi:
| mukaddas | ba |
|---|---|
| text.match(mataki) | mataki方法 match() |
| text.search(mataki) | mataki方法 search() |
| mataki.exec(text) | RexExp 方法 exec() |
| mataki.tsewa (text) | RexExp ɗanɗin test() |
- Raba ɗanɗin na baya \w
- Raba ɗanɗin na tsakiyar \d
- Raba ɗanɗin na biyu Kita'a na JavaScript RegExp
