JAVASCRIPT

javascript string get numbers

let string = "xxfdx25y93.34xxd73";
let res = string.replace(/D/g, "");
console.log(res);

javascript string get numbers

var txt = "#div-name-1234-characteristic:561613213213";
var numb = txt.match(/d/g);
numb = numb.join("");
alert (numb);​

javascript string get numbers

function onlyNumbers(text){
    return text.replace(/D/g, "");
}

javascript string get numbers

var num = txt.replace(/[^0-9]/g,'');

javascript string get numbers

function retnum(str) { 
    var num = str.replace(/[^0-9]/g, ''); 
    return parseInt(num,10); 
}

javascript string get numbers

thenum = "foo3bar5".match(/d+/)[0] // "3"

javascript string get numbers

var thenum = thestring.replace( /^D+/g, ''); // replace all leading non-digits with nothing

javascript string get numbers

function getre(str, num) {
  if(str === num) return 'nice try';
  var res = [/^D+/g,/D+$/g,/^D+|D+$/g,/D+/g,/D.*/g, /.*D/g,/^D+|D.*$/g,/.*D(?=d)|D+$/g];
  for(var i = 0; i < res.length; i++)
    if(str.replace(res[i], '') === num) 
      return 'num = str.replace(/' + res[i].source + '/g, "")';
  return 'no idea';
};
function update() {
  $ = function(x) { return document.getElementById(x) };
  var re = getre($('str').value, $('num').value);
  $('re').innerHTML = 'Numex speaks: <code>' + re + '</code>';
}