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arr1=[1,2,4,556,77,89,9];arr2=[12,12,3,4,5,6,7,87]；function de(){//代码}
闭关修行中......
arr1 = [1, 2, 4, 556, 77, 89, 9]; arr2 = [12, 12, 3, 4, 5, 6, 7, 87]; let difference = arr1 .filter(x => arr2.indexOf(x) == -1) .concat(arr2.filter(x => arr1.indexOf(x) == -1)); console.log(difference)
arr1 = [1, 12, 6, 2, 4, 556, 77, 89, 9]; arr2 = [12, 12, 3, 4, 5, 6, 7, 87]; var merge = arr1.concat(arr2).filter(function(v, i, arr) {return arr.indexOf(v) == arr.lastIndexOf(v);}); console.log(merge);
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闭关修行中......