Locating if a certain string in an array is even or odd in JavaScript

Question

Locating if a certain string in an array is even or odd in JavaScript

I am currently on a mission to locate an odd string within a given array.

Here's the code:

const friendArray = ["agdum", "bagdum", "chagdum", "lagdum", "jagdum", "magdum"];

function findOddString(arr) {
  for (let i = 0; i < arr.length; i++) {
    if (arr[i].length % 2 !== 0) {
      return arr[i];
    }
  }
}
const mysteriousFriend = findOddString(friendArray);
console.log(mysteriousFriend);

javascript arrays function

Answer 1

Answer №1

This example demonstrates how to filter out odd elements from an array of friends:

const friendList = ["alice", "bob", "charlie", "dave", "eve", "frank",];

function filterOddFriends(friendList) {
  if (friendList.length % 2 !== 0) {
    return friendList;
  }
}

const myOddFriends = friendList.filter(filterOddFriends);
console.log(myOddFriends);

Answer 2

This example demonstrates how to filter out odd elements from an array of friends:

const friendList = ["alice", "bob", "charlie", "dave", "eve", "frank",];

function filterOddFriends(friendList) {
  if (friendList.length % 2 !== 0) {
    return friendList;
  }
}

const myOddFriends = friendList.filter(filterOddFriends);
console.log(myOddFriends);

Answer 3

Answer №2

.flatMap() combined with a ternary callback creates a concise and easy-to-read filter function. It may not be completely clear whether you intended to filter only odd-length strings or both odd and even lengths, so here are both versions:

Strings with Odd Lengths

const fArray = ["agdum", "bagdum", "chagdum", "lagdum", "jagdum", "magdum"];

let odd = fArray.flatMap(o => o.length % 2 === 1 ? [o] : []);

console.log(odd);

Strings with Odd & Even Lengths

const fArray = ["agdum", "bagdum", "chagdum", "lagdum", "jagdum", "magdum"];

let oe = [[], []];

fArray.forEach(o => o.length % 2 === 1 ? oe[0].push(o) : oe[1].push(o));

console.log(oe);

Answer 4

.flatMap() combined with a ternary callback creates a concise and easy-to-read filter function. It may not be completely clear whether you intended to filter only odd-length strings or both odd and even lengths, so here are both versions:

Strings with Odd Lengths

const fArray = ["agdum", "bagdum", "chagdum", "lagdum", "jagdum", "magdum"];

let odd = fArray.flatMap(o => o.length % 2 === 1 ? [o] : []);

console.log(odd);

Strings with Odd & Even Lengths

const fArray = ["agdum", "bagdum", "chagdum", "lagdum", "jagdum", "magdum"];

let oe = [[], []];

fArray.forEach(o => o.length % 2 === 1 ? oe[0].push(o) : oe[1].push(o));

console.log(oe);

Answer 5

Answer №3

If you're looking to extract all the odd-length friends from an array, you can utilize the Array.filter() method. This function will generate a new array containing only those friends whose length meets the specified condition.

// Given array of friends
const friendArray = ["agdum", "bagdum", "chagdum", "lagdum", "jagdum", "magdum"];

// Extracting odd-length friends
console.log(friendArray.filter((friend) => friend.length % 2 !== 0));

Answer 6

If you're looking to extract all the odd-length friends from an array, you can utilize the Array.filter() method. This function will generate a new array containing only those friends whose length meets the specified condition.

// Given array of friends
const friendArray = ["agdum", "bagdum", "chagdum", "lagdum", "jagdum", "magdum"];

// Extracting odd-length friends
console.log(friendArray.filter((friend) => friend.length % 2 !== 0));

Locating if a certain string in an array is even or odd in JavaScript

Answer №1

Answer №2

Answer №3

Similar questions

The functionality of reordering columns, virtual scrolling, and resizing the grid in jqgrid are not functioning properly

Showing the value of a JavaScript variable within an HTML input field

Unbind a prepared statement in a node.js environment using SQL

What is the procedure for adding a data table to an HTML table with JSON?

Creating a conditional statement in jQuery that will append text to a specific DIV element after a form has been successfully

Revise my perspective on a modification in the backbone model

The style attribute is triggering an error stating that 'Every child in a list must possess a distinct "key" property.'

Create a Promise that guarantees to reject with an error

Attempting to modify the Nivo slider configuration has proven to be ineffective

Exploring a One-dimensional Array

The issue of Next.JS fetch not caching data within the same request

Issue - The command 'bower install' terminated with Exit Status 1

The error message "TypeError: undefined is not an object (evaluating '_reactNative.Stylesheet.create')" occurred in a React Native environment

React returns Not a Number when summing up numbers

Using three.js to create a rotating analog clock in Javascript

The NVD3 tooltip is being obscured by other divs

Issue encountered with edges helper and a partly opaque object rendering

Experiencing problems with the calling convention in JavaScript

What sets apart a space after the ampersand from no space in Material UI?

Divide a collection of q promises into batches and execute them sequentially