Using `[removed].hash.includes` throws “Object doesn't support property or method 'includes'” in IE11

Question

I am checking the URL to see if it contains or includes a ? in it to control the hash pop state in the window. All other browsers aren’t having an issue, only IE.

Answer 1

This question and its answers led me to my own solution (with help from SO), though some say you shouldn't tamper with native prototypes:

  // IE does not support .includes() so I'm making my own:
  String.prototype.doesInclude=function(needle){
    return this.substring(needle) != -1;
  }

Then I just replaced all .includes() with .doesInclude() and my problem was solved.