Regex only contain binary number and not more than 8 digit

Question

I expect true return value that match condition below :

Only binary number (0 or 1)
Length not more than 8

I'm new to regex, i have googling and read JS RegExp from https://www.w3schools.com/Js/js_regexp.asp but still i don't get it.

I've tried

/[0-1]$/

but still didn't match the condition above

I expect boolean return from regex test if there is contain no other number except 0 or 1 and length not more than 8.

data: {
  binRegExp: /[0-1]$/,
  isBinary: false,
  binNum: '', // get value from user input
},
computed: {
  inputCheck(){
    return this.isBinary = this.binRegExp.test(this.binNum)
  }
}

code above is vue js

That's definitely part of any regular expressions tutorial out there... -> https://www.regular-expressions.info/repeat.html — Andreas, Mar 28 '19 at 16:20

score 1 · Accepted Answer · answered Mar 28 '19 at 16:19

1

this will takes 1 to 8 [1-0]

const regex = /^[0-1]{1,8}$/


const text = "1010010"

console.log(regex.test(text));

answered Mar 28 '19 at 16:19

Aziz.G

3,599
2
17
35

score 0 · Answer 2 · answered Mar 28 '19 at 16:19

0

Try

/^[01]{1,8}$/

let strings = ['11110001','1111000111','11112001'];

strings.forEach(x=> /^[01]{1,8}$/.test(x) ? console.log(x,'pass') : console.log(x,'not pass'))

answered Mar 28 '19 at 16:19

Kamil Kiełczewski

85,173
29
368
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Regex only contain binary number and not more than 8 digit

2 Answers2