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- var findCommon = function(arrs) {
- var resArr = [];
- for (var i = arrs[0].length - 1; i > 0; i--) {
- for (var j = arrs.length - 1; j > 0; j--) {
- if (arrs[j].indexOf(arrs[0][i]) == -1) {
- break;
- }
- }
- if (j === 0) {
- resArr.push(arrs[0][i]);
- }
- }
- return resArr;
- }
- var arrays = [
- [1, 4, 6, 78, 8, 9, 124, 44],
- [44, 6, 9],
- [124, 44, 16, 9]
- ]
- findCommon( arrays )
- [44, 9]
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