How to remove the position of an array with jquery

Question

I am trying to remove a position from the array with Slice, so I can only take it with the position of this array, could I take it for value? Because the position of the array changes a lot in each situation, I’m trying this way:

if($j('#folog_manha').css('display') == "none"){
   var retornox = retorno.slice('Manhã');
}

If there is no way, how would I take the positions of this array to compare? in case I take the position that is 'Morning' and give it a chance.

Answer 1

Try to do as in this example:

var arr        = ['a', 'b', 'c', 'd', 'e']; //Array inicial
var removeItem = 'c';   // Valor do array que será removido

arr = jQuery.grep(arr, function(value) {
    return value != removeItem;
});
console.log('Array após a remoção: ' + arr);

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

Your code would look like this:

if($j('#folog_manha').css('display') == "none"){
   var removeItem = 'Manhã';

   retorno= jQuery.grep(retorno, function(value) {
    return value != removeItem;
   });

   // new array
   // fica sem "manha"

}

The method grep jQuery scrolls through all indexes of an array and returns those you want.

Reference link

Answer 2

To remove a position from an array by the value just use the Index in the way splice

var arr = [ "abc", "def", "ghi" ];

arr.splice(arr.indexOf("def"), 1);