find duplicates in array and delete them javascript code example
Example 1: js delete duplicates from array
const names = ['John', 'Paul', 'George', 'Ringo', 'John'];
let unique = [...new Set(names)];
console.log(unique); // 'John', 'Paul', 'George', 'Ringo'
Example 2: javascript filter array remove duplicates
// Using the Set constructor and the spread syntax:
arrayWithOnlyUniques = [...new Set(arrayWithDuplicates)]