Assign global variable inside jquery submit function and pass to regex function

Question

Assign value to global tracking variable on submit of form.

var tracking;

$('.form-inline').submit(function (e) {
  e.preventDefault();
  tracking = jQuery('input[name="tracking"]').val();
  init()
})

execute function init()

function init() {
  Tabletop.init({
    key: public_spreadsheet_url,
    callback: showInfo,
    simpleSheet: true
  })
}

Which initiates the showInfo callback

var zipMatches = "";
function showInfo(data, tabletop) {
  alert('Callback initiated..');
  for (var i = 0; i < data.length; i++) {
    var myRegex = '/' + tracking + '/';
    console.log(myRegex)
    if (myRegex.test(data[i].tracking)) {
      zipMatches = zipMatches + data[i].location_1 + ", " + data[i].location_2 + ", " + data[i].location_3;
    }
  }
  //write it into the DOM 
  var myElement = document.querySelector(".myJSON");
  myElement.innerHTML = "<h3>List of Zipcodes that match tracking ID: </h3><p>" + zipMatches + "</p>";
}

myRegex.test is not a function

However regex function works with hardcoded value

if (/ABCD123/.test(data[i].tracking)) {...

How do I pass the regex value as a global variable?

..

Edit (working callback function):

function showInfo(data, tabletop) {
  var regexp = new RegExp(tracking);
  for (var i = 0; i < data.length; i++) {
    if (regexp.test(data[i].tracking)) {
      zipMatches = zipMatches + data[i].location_1 + ", " + data[i].location_2 + ", " + data[i].location_3;
    }
  }.. 

Answer 1

Plese try with following sol:

var regexp = new RegExp(tracking);

and please put it outside of forloop. So it is optimized.

Since you have tried var regexp = "/" + tracking + "/"; will convert it into string. Not regex object. So you won't get test method in it.

Hope it helps :)