两个 arrays javascript 之间的区别

Question

I've seen more than one question solving this but when applying them it didn't work for me, please help me solve this. I've written my code according to this question

    let difference = selectedStores.filter(selectedStore => {
      alreadySyncedStores.filter(productSyncedStores => {
        console.log('productSyncedStores', productSyncedStores);
        console.log('selectedStore', selectedStore);
        console.log('result ', !productSyncedStores.includes(selectedStore));
        !productSyncedStores.includes(selectedStore)
      })
    });
    console.log('>>difference<<<', difference)

both arrays and console results are reflected in the images below thanks in advance.

expected result is: difference = ['100000000713']

Answer 1

You can use this function to get the desired output Suppose you have two array

var arr1 = ['12','32','54']; var arr2 = ['14','32','21'];

function GetDifference(arr1,arr2) {

var diffArr = [];

arr1.forEach(function (index, value){

if (arr2.indexOf(index) == -1) {

    diffArr.push(index);

}

});

arr2.forEach(function (index, value){

if (arr1.indexOf(index) == -1 && diffArr.indexOf(index) == -1) {

    diffArr.push(index);

}

});

return diffArr;

}`

You Will Get out as below.

// ['12', '54', '14', '21']