javascript difference between two arrays
let difference = arr1.filter(x => !arr2.includes(x));javascript difference between two arrays
let difference = arr1.filter(x => !arr2.includes(x));javascript get array difference
function arrayDiff (a1, a2) {
var a = [], diff = [];
for (var i = 0; i < a1.length; i++) {
a[a1[i]] = true;
}
for (var i = 0; i < a2.length; i++) {
if (a[a2[i]]) {
delete a[a2[i]];
} else {
a[a2[i]] = true;
}
}
for (var k in a) {
diff.push(k);
}
return diff;
}
//usage:
console.log(arrayDiff(['red', 'white','green'], [ 'red','white', 'blue']));//["green", "blue"]Diff Two Arrays
const diffArray = (arr1, arr2) => {
// Store the different elements
const diffArray = []
// Concat both arrays
const uniqueArr = [...new Set([...arr1, ...arr2])];
// OR const uniqueArr = [...new Set(arr1.concat(...arr2))]
// Loop through the unique array and confirm that each element in it
// is in both arrays(arr1,arr2), else push element not found in both
// arrays to the diffArray and return it
uniqueArr.forEach(elem => {
if(!arr1.includes(elem) || !arr2.includes(elem))
diffArray.push(elem)
})
return diffArray
}
diffArray([1, 2, 3, 5], [1, 2, 3, 4, 5]);
// With love @kouqharCopyright © 2021 Codeinu
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