Created
June 6, 2011 00:23
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Remove dups from an array in Javascript
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var arr = [9, 9, 111, 2, 3, 4, 4, 5, 7]; | |
var sorted_arr = arr.sort(); | |
var results = []; | |
for (var i = 0; i < arr.length - 1; i += 1) { | |
if (sorted_arr[i + 1] == sorted_arr[i]) { | |
results.push(sorted_arr[i]); | |
} | |
} | |
alert(results); | |
# or | |
function eliminateDuplicates(arr) { | |
var i, | |
len=arr.length, | |
out=[], | |
obj={}; | |
for (i=0;i<len;i++) { | |
obj[arr[i]]=0; | |
} | |
for (i in obj) { | |
out.push(i); | |
} | |
return out; | |
} |
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