javascript - Compare arrays of different sizes and dimensions -
so here's proposed problem.
compare 2 arrays , return new array items not found in both of original arrays.
here's have far.
function diff(arr1, arr2) { (var in arr1) { (var b in arr2) { if (arr1[a] == arr2[b]){ arr2.splice(b,1); } } } return arr2; } diff([1, 2, 3, 5], [1, 2, 3, 4, 5]); this code compares each value of first array second one. if match found removes item using splice function.
this works great arrays 1 dimensional how can work multidimensional arrays such as:
diff([1, 2, 3, 5], [1, [2, 3], [4, 5]]); what if these arrays not 2 dimensions number of dimensions. should able iterate through every element of every array no matter set up.
with lodash can :
var = [1, 2, 3, 5, 7], b = [1, [2, 3], [4, 5, [7]]]; var result = _.filter(_.flattendeep(b), function(item){ return a.indexof(item) === -1; }); console.log(result); $("body").append(json.stringify(result))<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script> <script src="https://cdnjs.cloudflare.com/ajax/libs/lodash.js/3.10.0/lodash.min.js"></script> <body></body>
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