Answers for "how to find duplcates in two arrays and create array with duplicate elements js"

3

merge array no duiplicates js

let array1 = ['a','b','c'];
let array2 = ['c','c','d','e'];
let array3 = array1.concat(array2);
array3 = [...new Set([...array1,...array2])]; // O(n)
Posted by: Guest on December-04-2020
1

javascript create array with repeated values

Array(5).fill(2)
//=> [2, 2, 2, 2, 2]
Posted by: Guest on February-17-2021

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