every possible pairing in an array javascript in new array

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showing results for - "every possible pairing in an array javascript in new array"
Giorgia
01 Jan 2017
1function pairs(arr) {
2    var res = [],
3        l = arr.length;
4    for(var i=0; i<l; ++i)
5        for(var j=i+1; j<l; ++j)
6            res.push([arr[i], arr[j]]);
7    return res;
8}
9pairs([1, 2, 3]).forEach(function(pair){
10    console.log(pair);
11});
12
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