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 duplicates from array
unique = [...new Set(arr)]; // where arr contains duplicate elementsremove duplicates from array
let chars = ['A', 'B', 'A', 'C', 'B'];
let uniqueChars = [...new Set(chars)];
console.log(uniqueChars);
output:
[ 'A', 'B', 'C' ]javascript to remove duplicates from an array
uniqueArray = a.filter(function(item, pos) {
return a.indexOf(item) == pos;
})remove duplicate array es6
let a = [10,20,30,10,30];
let b = a.filter((item,index) => a.indexOf(item) === index);
console.log(b);javascript to remove duplicates from an array
uniqueArray = a.filter(function(item, pos) {
return a.indexOf(item) == pos;
})Copyright © 2021 Codeinu
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