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How to remove every Nth element from an array JavaScript?
Let’s say, we have to write a function remove Nth that takes in an array and a number n and it removes every nth element of the array in place.
This can be done using the Array.prototype.splice() method and here is the code for doing so −
Example
const arr = ['T','h','a','i','s','b',' ','i','c','s','
','a','t','h','e','e',' ','t','s','o','r','n','g','t','
','t','n','h','a','s','t',' ','o','n','e','o','v','e','a','r','
','f','e','n','a','d','s','p',','];
const removeNth = (arr, n) => {
for(let i = n-1; i < arr.length; i += n){
arr.splice(i, 1);
};
};
removeNth(arr, 2);
console.log(arr);Output
The output in the console will be −
[ 'T', 'a', 'i', 'b', ' ', 'c', 's', 'a', 't', 'e', 'e', 't', 's', 'r', 'n', 't', ' ', 'n', 'h', 's', 't', 'o', 'n', 'o', 'v', 'a', 'r', 'f', 'e', 'a', 'd', 'p', ',' ]
Updated on: 26-Aug-2020
828 Views
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