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JavaScript AJAX Basics (retiring) jQuery and AJAX Stage 3 Challenge Answer

Posted by Zsofia Helmeczi
Zsofia Helmeczi
11,357 Points

Using 'this' in .each() loop

Hi,

I am trying to use the 'this' method in my .each() loop for the room widget challenge. Does this make sense? It is working, but I would like to have a second pair of eyes to look at it.

$(document).ready(function() {
  $.getJSON( '../data/rooms.json', function(response) {
    var roomsHTML = '<ul class="rooms">';
    //loop for all the rooms in JSON
    $.each(response, function() {
      //if room is empty or full
      if(this.available === true) {
        roomsHTML += '<li class="empty">'
      }; else (this.available === false) {
        roomsHTML += '<li class="full">'
      };
      roomsHTML += this.room + '</li>';
    }); // end each
    roomsHTML += '</ul>';
    $('#roomList').html(roomsHTML);
  }); // end getJSON
}); // end ready

Thank you for your help!

Zsofia

1 Answer

Chyno Deluxe
Chyno Deluxe
16,936 Points
Chyno Deluxe
Chyno Deluxe
16,936 Points

Assuming everything else is correct. Yes the this property is valid.

However you have a couple syntax errors you'll need to fix.

you have a semi-colon at the end of your if statment and you are missing the word "if" after "else". view below

 //if room is empty or full
      if(this.available === true) {
        roomsHTML += '<li class="empty">'
      } else if (this.available === false) {
        roomsHTML += '<li class="full">'
      };
Zsofia Helmeczi
Zsofia Helmeczi
11,357 Points

thank you!

felixwin
felixwin
14,939 Points

Hey Chyno Deluxe, i am askying myself, if you are right about the missing "if" in Zsofia Helmeczi's code. Because there is no other else following, and the question about the availability of the room is the last question of condition, (since its a boolian, there are only 2 possible conditions) a simple "else" (without "if") should be valid.

From MDN: if (condition) { statement_1; } else { statement_2; }

[EDIT] Oh, i take back all I'v said. I didn't noticed, that Zsofia checked the condition of "available" a second time, which is unnecessary, since its a boolian. And so you are totaly right: Every time a condition is checked, an "if" is mandatory.

Cheers =)