^[1-9]\d{5}(18|19|20)\d{2}((0[1-9])|(1[0-2]))((0-2)|10|20|30|31)\d{3}[0-9Xx]$

Removes BBCode tags with any characters provided after = (e.g. attributes). Omits unknown tags.

Regex שבודק אם טלפון ישראלי תקין (גם נייח וגם נייד).

save at 2018.11.25

Creates a variable of type Collection and adds listed items to it

Trim repeating characters at start and end, e.g. "//strip me$$" becomes "/strip me$"

匹配第一个非00的十六进制数(排除行号)

Check number in calculator