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'function that duplicates data in array js
function doubleValues(array) {
var newArray = [];
array.forEach(function (el) { newArray.push(el, el); });
return newArray;
}
console.log(doubleValues([1,2,3]));Copyright © 2021 Codeinu
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