16 lines
354 B
JavaScript
16 lines
354 B
JavaScript
|
function find_duplicate_in_array(arra1) {
|
||
|
|
var i,
|
||
|
|
len=arra1.length,
|
||
|
|
result = [],
|
||
|
|
obj = {};
|
||
|
|
for (i=0; i<len; i++)
|
||
|
|
{
|
||
|
|
obj[arra1[i]]=0;
|
||
|
|
}
|
||
|
|
for (i in obj) {
|
||
|
|
result.push(i);
|
||
|
|
}
|
||
|
|
return result;
|
||
|
|
}
|
||
|
|
var arr = [1, 2, -2, 4, 5, 4, 7, 8, 7, 7, 71, 3, 6];
|
||
|
|
console.log(find_duplicate_in_array(arr));
|