How to delete duplicate array in javascript or Jquery

Question

Array

[ li.size30x30, li.size60x30, li.size60x30, li.size30x30, li.size60x30,
  li.size60x30, li.size60x30, li.size60x30, li.size30x30, 704 more… ]

expect result Array [ li.size30x30, li.size60x30 ]

I really liked this: [unique] (codereview.stackexchange.com/questions/60128/…), it's elegant(look at the first answer) — Ziki
– Ziki, Commented Oct 9, 2015 at 7:26

Pranav C Balan · Accepted Answer · 2015-10-09 07:21:48Z

1

You can use filter() and indexOf() here

var arrayEl = ['li.size30x30', 'li.size60x30', 'li.size60x30', 'li.size30x30', 'li.size60x30',
  'li.size60x30', 'li.size60x30', 'li.size60x30', 'li.size30x30'
];

arrayEl = arrayEl.filter(function(v, i, arr) {
  return i == arr.indexOf(v);
  // checking array element already occured before the element using indexOf(), which returns index of first occurance 
});

document.write(JSON.stringify(arrayEl));

answered Oct 9, 2015 at 7:21

Pranav C Balan

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