比较hashMap数组值和Javascript

Question

How to compare between two Hashmaps that contains arrays in their values with javascript?

Example : Let suppose this is my 2 hashmaps

1st =>

1234 : [1.03 , 2.17 , 3] 
1235 : [1 , 4 , 5]
1236 : [2 , 3 , 3]
1237 : [0.33 , 1.51 , 5]

2nd =>

1234 : [1.03 , 2.17 , 3]
1235 : [1.17 , 2 , 3.9]
1236 : [2 , 3 , 3]
1237 : [2 , 1 , 5]

Result =>

1235 : [1 , 4 , 5]
1237 : [0.33 , 1.51 , 5]

(the goal is to compare the first with the second and display what keys and values of the first hashmap that aren't coherent).

Answer 1

I did this at the beginning when my values was String and not arrays :

compareHashMap: function(iAdaptation, iActual){
                var difference = {};
                Object.keys(iActual).forEach(function(k){
                    if(iAdaptation[k] !== iActual[k]){
                        difference[k] = iActual[k];
                    }
                });
                return difference;
            },

PS : iAdaptation and iActual are hashmaps

Answer 2

You can use Array.prototype.filter() and Array.prototype.map() :

 const one = {1234: [1.03, 2.17, 3],1235: [1, 4, 5],1236: [2, 3, 3],1237: [0.33, 1.51, 5]}; const two = {1234: [1.03, 2.17, 3],1235: [1.17, 2, 3.9],1236: [2, 3, 3],1237: [2, 1, 5]}; const result = Object.keys(one) .filter(k => one[k].toString() !== two[k].toString()) .map(k => ({[k]: one[k]})); console.log(result); 

 .as-console-wrapper { max-height: 100% !important; top: 0; }