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I want a distinct array. I couldn't figure it out how it works

---This is my Function---

var Array = [2, 0, 1, 9, 1, 3, 2, 4, 5, 5, 3, 4] function distinctArray(val){ var newArray=[]; for(var i=0 ; i < val.length; i++){ if (newArray.indexOf(val[i]) > -1){ newArray.push(val[i]) } } return newArray }
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You probably meant to type

if (newArray.indexOf(val[i]) == -1) // if it does NOT already exist

instead of 

if (newArray.indexOf(val[i]) > -1)
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You could just use Array.filter() for keeping only element which are unique

var array = [2, 0, 1, 9, 1, 3, 2, 4, 5, 5, 3, 4]; var distinct = array.filter((x,i,arr) => arr.lastIndexOf(x) === i); console.log(distinct);

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