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Archive for the Algorithms Category

In JavaScript Sort Numbers using the `sort()` Function
Posted on November 28, 2017 in Algorithms, JavaScript by Matt Jennings

var numbers = [2, 1, 111, 222, 33, -2];

// Output is [-19, -2, 1, 33, 111, 222]
// because the ‘return …

In JavaScript Show Longest Word in a String
Posted on November 28, 2017 in Algorithms, JavaScript, Regular Expressions by Matt Jennings

function longestWord(sen) {
// ‘sen’ is a string and ‘match’
// matches all the items in the …

Determine If a Positive Integer is a Prime Number Using JavaScript
Posted on November 27, 2017 in Algorithms, JavaScript by Matt Jennings

function getPrimeNumber(num) {

var arr = [];

for(var i = 1; i < num + …

In JavaScript Reverse a String without using `reverse()`
Posted on November 12, 2017 in Algorithms, JavaScript by Matt Jennings

var str = ‘blah’;

function reverseStr(str1) {
var arr1 = str1.split(”);
var arr2 = [];

…

Using JavaScript Push Common Numbers from Two Arrays into a Third Array
Posted on July 31, 2015 in Algorithms, JavaScript by Matt Jennings

function commonIdsFromTwoArrays(arr1, arr2) {
// Array to push common IDs into
var commonIdsArr = [];

…