optional

match strings with some optional characters

HI

예시 “Cafe Latte” (ㅇ) “Ca fe Latte” (ㅇ) “Cafe Latte” (X) “ Cafe Latte” (X) “ Cafe Latte ” (X)...

예시) 1 // ok 45 // ok 46 // no

/** comments */ // to the end /* comments */

Parsing signature of wire rebar mesh by "ГОСТ 23279-2012"

Match all filenames in any URL including those with ANSI escaped characters (PHP version).

Can obtain videoId using videoId () { return this.video_url.match(/(?:https?:\/\/)?(?:www\.)?youtu(?:be)?\.(?:com|be)(?:\/watch\/?\?v=|\/embed\/|\/shorts\/|\/)(\w+)/)[1] } ...

Capture Data between 2 slashes

Split The Phone Numbers

从元素解析视频URL

regex for ip validation

12/10/1991

嵌入条件

Remove Hatena blog keyword

simulate to event

simulate to event

simulate to event

first test