How to check if a string contains a number in JavaScript?

Question

I don\'t get how hard it is to discern a string containing a number from other strings in JavaScript.

Number(\'\') evaluates to 0, while

Answer 1

By using below function we can test whether a javascript string contains a number or not. In above function inplace of t, we need to pass our javascript string as a parameter, then the function will return either true or false

function hasNumbers(t)
{
var regex = /\d/g;
return regex.test(t);
}