js delete duplicates from array
const names = ['John', 'Paul', 'George', 'Ringo', 'John'];
let unique = [...new Set(names)];
console.log(unique); // 'John', 'Paul', 'George', 'Ringo'js delete duplicates from array
const names = ['John', 'Paul', 'George', 'Ringo', 'John'];
let unique = [...new Set(names)];
console.log(unique); // 'John', 'Paul', 'George', 'Ringo'javascript remove duplicate in two arrays
array1 = array1.filter(function(val) {
return array2.indexOf(val) == -1;
});
// Or, with the availability of ES6:
array1 = array1.filter(val => !array2.includes(val));javascript remove duplicates from array
unique = [...new Set(arr)]; // where arr contains duplicate elementsjavascript to remove duplicates from an array
uniqueArray = a.filter(function(item, pos) {
return a.indexOf(item) == pos;
})remove duplicates from array javascript
function onlyUnique(value, index, self) {
return self.indexOf(value) === index;
}
// usage example:
var a = ['a', 1, 'a', 2, '1'];
var unique = a.filter(onlyUnique);
console.log(unique); // ['a', 1, 2, '1']Copyright © 2021 Codeinu
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