jQuery.inArray() not working

Question

I need to check if a number is present in an array of number that I get from PHP, and if yes render a data coming from iosocket. But for some reason this code won't work. The array return 20, 25 and the number to check is 20 f.example

<script>
var negozi_seguiti = <?php echo json_encode($negozi_seguiti); ?>;
var post = io('http://1clickfashion.com:3002');
post.on("test-channel:App\\Events\\Post", function(message){
  // increase the power everytime we load test route 
  alert(negozi_seguiti);
  if (jQuery.inArray(negozi_seguiti, message.data.negozio) == -1) {
    $('#timeline').addClass("timeline");
    $('#timeline').prepend(message.data.timeline);
    $('#rocket').hide();
  }
});
</script>

What i'm wrong?

jQuery.inArray( value, array [, fromIndex ] ) you seem to be passing arguments in the wrong order — apokryfos
– apokryfos, Commented Oct 25, 2017 at 8:33
Not related, but make it a habit to use === instead of == — ShamPooSham
– ShamPooSham, Commented Oct 25, 2017 at 8:35

Serge K. · Accepted Answer · 2017-10-25 08:41:33Z

3

You misused inArray, you inverted arguments, use it like this :

var arr = [20, 21];

console.log($.inArray(20, arr))

<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>

I also suggest you tu use indexOf which works the same way but is called directly on the array reducing the risk of doing a mistake like this :

var arr = [20, 21];

console.log(arr.indexOf(20));

It makes your code clearer, you get rid of jQuery, and finally it is faster.

edited Oct 25, 2017 at 8:41

answered Oct 25, 2017 at 8:34

Serge K.

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1 Comment

rubenSousa Over a year ago

unfortunately not work arry is output array:2 [▼ 0 => 25 1 => 20 ]

Milan Chheda · Accepted Answer · 2017-10-25 08:49:54Z

0

If you are getting proper value in your array negozi_seguiti variable then you need to change $.inArray('search_value', 'yourarray') like bellow.

var negozi_seguiti = <?php echo json_encode($negozi_seguiti); ?>;
var post = io('http://1clickfashion.com:3002');
post.on("test-channel:App\\Events\\Post", function(message) {
  // increase the power everytime we load test route 
  alert(negozi_seguiti);
  if (jQuery.inArray(message.data.negozio, negozi_seguiti) == -1) {
    $('#timeline').addClass("timeline");
    $('#timeline').prepend(message.data.timeline);
    $('#rocket').hide();
  }
});

edited Oct 25, 2017 at 8:49

Milan Chheda

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answered Oct 25, 2017 at 8:39

Aiyaz Khorajia

5982 silver badges11 bronze badges

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