Check if URL contains number

Capture the hash with location.hash and check that it has a number with .test() using a regular expression \d (number from 0 to 9):

var hash = location.hash;
if(/\d/.test(hash)){
   console.log("tem número");
}else{
   console.log("não tem número");
}

You can use a function for this too:

function verHash(i){
   if(/\d/.test(i)) return true;
   return false;
}

verHash(location.hash);

Then you can assign the value of the function to a variable if you want and check:

var tem_numero = verHash(location.hash);

if(tem_numero){
   console.log("tem número");
}else{
   console.log("não tem número");
}

Or you can check directly on if without declaring a variable if you want:

if(verHash(location.hash)){
   console.log("tem número");
}else{
   console.log("não tem número");
}

  

To verify that the hash contains only numbers (eg, # 123, # 1   etc.) change the regular expression from \d to ^#\d+$ .

You can use location.hash to do this verification

if( ! isNaN( location.hash.substr(1) *1 ) )
{
    /// é um numero
}

A very simple example:

var valor1 = "https://pt.stackoverflow.com#";
var valor2 = "https://pt.stackoverflow.com#123i";

var verifica1 = valor1.substr(valor1.indexOf("#") + 1);
var verifica2 = valor2.substr(valor2.indexOf("#") + 1);

var encontrou1 = verifica1.match(/\d+/g);
var encontrou2 = verifica2.match(/\d+/g);

alert(encontrou1 != null);
alert(encontrou2 != null);

link