[Solved] How to write Regex for input values? [closed]

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var a="123/4";
var b = 'e123/4';

Variant 1 

var regex = new RegExp('^[0-9/]+$');

console.log((a.match(regex)) ? true : false); // true
console.log((b.match(regex)) ? true : false); // false

Variant 2 

var regex = /^[0-9/]+$/;

console.log((a.match(regex)) ? true : false); // true
console.log((b.match(regex)) ? true : false); // false

Variant 3 

var regex = /^[\d\/]+$/;

console.log((a.match(regex)) ? true : false); // true
console.log((b.match(regex)) ? true : false); // false

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solved How to write Regex for input values? [closed]