Regex string contain just digits and *,#, in javascript-CodePudding

I am trying to implement a function in Javascript that verify a string. The pattern i must to do is contain only digits charactor, *, # and . For example:

 182031203
 12312312312*#
 2131*1231#
*12312 #
#123*########

I tried alot of thing like

/^[\d]{1,}[*,#, ]{1,}$

but it's doesn't work. I am not sure that i understand good in regex. Please help.

CodePudding user response：

I think you want the pattern ^[0-9*# ] $:

var inputs = [" 182031203", " 12312312312*#", " 2131*1231#", "12312 #", "#123########"];
for (var i=0; i < inputs.length;   i) {
    console.log(inputs[i]   " => "   /^[0-9*# ] $/.test(inputs[i]));
}

CodePudding user response：

Using Regex101

/^[0-9\*\#\ ] $/g

0-9 matches a single character in the range between 0 (index 48) and 9 (index 57) (case sensitive) * matches the character * with index 4210 (2A16 or 528) literally (case sensitive) # matches the character # with index 3510 (2316 or 438) literally (case sensitive) matches the character with index 4310 (2B16 or 538) literally (case sensitive)

CodePudding user response：

Try this regular expression:

const rxDigitsAndSomeOtherCharacters = /^(\d |[*#] ) $/;

Breaking it down:

^ start-of-text, followed by
( a [capturing] group, consisting of
- \d one or more digits
- | or...
- [*# ] one ore more of *, # or
) , the [capturing] group being repeated 1 or more times, and followed by
$ end-of-text