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'Remove duplication from array in javascript
const names = ["Alvi", "Arham", "Talha", "Safi", "Sameer", "Nazmi", "labli", "Arham", "Talha", "Labiba", "Tabassum", "Adiba"];
function removeDuplication(names) {
const unique = [];
for (element of names) {
if (unique.indexOf(element) == -1) {
unique.push(element)
}
}
return unique;
}
console.log(removeDuplication(names));
//Output:
/* [
'Alvi',
'Arham', 'Talha',
'Safi', 'Sameer',
'Nazmi', 'labli',
'Labiba', 'Tabassum',
'Adiba'
] */Remove Array Duplicate
const removeDuplicates = (arr) => [...new Set(arr)];
console.log(removeDuplicates([1, 2, 3, 3, 4, 4, 5, 5, 6]));
// Result: [ 1, 2, 3, 4, 5, 6 ]remove duplicate array es6
let a = [10,20,30,50,30];
let b = a.reduce((unique,item) => unique.includes(item) ? unique: [... unique, item] ,[]);
console.log(b);Copyright © 2021 Codeinu
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