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Javascript – Regex with NAND logic for dash and comma symbols

The string can contain any number of any characters in any order. However, it should not contain both comma and dash simultaneously. Examples:

123 // ok
1,23 // ok
1-23 // ok
1,2-3 // not ok
1-2-3 // ok
foobar! // ok
a---t // ok
,3,*, // ok
k-, // not ok
Tags:

2

Answers


  1. 0

    It looks like for searching a group with comma or dash and repeating of this group or not.

    /^d([,-])?d1?d$/
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  2. 0

    Regex:

    /^(?!.*(?=.*-)(?=.*,)).*$/

    function checkCommaDash (str){
  /^(?!.*(?=.*-)(?=.*,)).*$/.test(str) ? console.log('ok') : console.log('not ok')
}
checkCommaDash('123')
checkCommaDash('1,23')
checkCommaDash('1-23')
checkCommaDash('1,2-3')
checkCommaDash('1-2-3')
checkCommaDash('foobar!')
checkCommaDash('a---t')
checkCommaDash(',3,*,')
checkCommaDash('k-,')
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