fix: standard style issues

Conversions/BinaryToHex.js

@@ -1,5 +1,5 @@
 const pad = (num, padlen) => {
-  var pad = new Array(1 + padlen).join(0)
+  const pad = new Array(1 + padlen).join(0)
   return (pad + num).slice(-pad.length)
 }
 

Conversions/DecimalToRoman.js

@@ -40,7 +40,7 @@ const orders = [
 
 function decimalToRoman (num) {
   let roman = ''
-  for (var symbol of orders) {
+  for (const symbol of orders) {
     while (num >= values[symbol]) {
       roman += symbol
       num -= values[symbol]

Conversions/HexToDecimal.js

@@ -1,18 +1,16 @@
 function hexToInt (hexNum) {
   const numArr = hexNum.split('') // converts number to array
-  numArr.map((item, index) => {
+  return numArr.map((item, index) => {
-    if (!(item > 0)) {
+    switch (item) {
-      switch (item) {
+      case 'A': return 10
-        case 'A': return (numArr[index] = 10)
+      case 'B': return 11
-        case 'B': return (numArr[index] = 11)
+      case 'C': return 12
-        case 'C': return (numArr[index] = 12)
+      case 'D': return 13
-        case 'D': return (numArr[index] = 13)
+      case 'E': return 14
-        case 'E': return (numArr[index] = 14)
+      case 'F': return 15
-        case 'F': return (numArr[index] = 15)
+      default: return parseInt(item)
-      }
+    }
-    } else numArr[index] = parseInt(item)
   })
-  return numArr // returns an array only with integer numbers
 }
 
 function hexToDecimal (hexNum) {
@@ -23,9 +21,3 @@ function hexToDecimal (hexNum) {
 }
 
 export { hexToInt, hexToDecimal }
-
-// > hexToDecimal('5DE9A'))
-// 384666
-
-// > hexToDecimal('3D'))
-// 61

Data-Structures/Queue/CircularQueue.js

@@ -33,9 +33,7 @@ class CircularQueue {
     }
     const y = this.queue[this.front]
     this.queue[this.front] = '*'
-    if (this.checkSingleelement()) {
+    if (!this.checkSingleelement()) {
-
-    } else {
       if (this.front === this.maxLength) this.front = 1
       else {
         this.front += 1

Maths/ExtendedEuclideanGCD.js

@@ -2,19 +2,19 @@
  * Problem statement and explanation: https://en.wikipedia.org/wiki/Extended_Euclidean_algorithm
  *
  * This algorithm plays an important role for modular arithmetic, and by extension for cyptography algorithms
- * 
+ *
  * Basic explanation:
  * The Extended Euclidean algorithm is a modification of the standard Euclidean GCD algorithm.
  * It allows to calculate coefficients x and y for the equation:
  *          ax + by = gcd(a,b)
- * 
+ *
  * This is called Bézout's identity and the coefficients are called Bézout coefficients
- * 
+ *
  * The algorithm uses the Euclidean method of getting remainder:
  * r_i+1 = r_i-1 - qi*ri
  * and applies it to series s and t (with same quotient q at each stage)
  * When r_n reaches 0, the value r_n-1 gives the gcd, and s_n-1 and t_n-1 give the coefficients
- * 
+ *
  * This implementation uses an iterative approach to calculate the values
  */
 

Project-Euler/Problem007.js

@@ -1,26 +0,0 @@
-// https://projecteuler.net/problem=7
-// My approach does not use the Sieve of Eratosthenes but that is another common way to approach this problem. Sieve of Atkin is another possibility as well.
-
-export const calculatePrime = (num = 10001, primes = [2, 3, 5, 7, 11, 13]) => {
-  // Calculate each next prime by checking each number to see what it's divisible by
-  let count = primes.length // count number of primes calculated
-  let current = primes[count - 1] + 1 // current number being assessed if prime
-  while (count < num) { // repeat while we haven't reached goal number of primes
-    // go through each prime and see if divisible by the previous primes
-    let prime = false
-    primes.some((n, i) => {
-      if (current % n === 0) {
-        return true
-      }
-      if (i === count - 1) {
-        prime = true
-      }
-    })
-    if (prime) { // if prime, add to prime list and increment count
-      primes.push(current)
-      count += 1
-    }
-    current += 1
-  }
-  return primes[num - 1]
-}

Sorts/PancakeSort.js

@@ -26,7 +26,7 @@
  * @param {number} endIndex The end of the subarray
  * @returns The flipped array
  */
-export function flipArray(array, startIndex, endIndex) {
+export function flipArray (array, startIndex, endIndex) {
   while (startIndex < endIndex) {
     // swap front and back of the subarray
     const temp = array[startIndex]
@@ -49,7 +49,7 @@ export function flipArray(array, startIndex, endIndex) {
  * @param {*} endIndex The end of the subarray
  * @returns The index of the maximum number
  */
-export function findMax(array, startIndex, endIndex) {
+export function findMax (array, startIndex, endIndex) {
   let maxIndex = 0
   for (let i = startIndex; i <= endIndex; i++) {
     if (array[i] > array[maxIndex]) maxIndex = i
@@ -67,7 +67,7 @@ export function findMax(array, startIndex, endIndex) {
  * @param {number[]} array The array to sort
  * @returns The sorted array
  */
-export function pancakeSort(array) {
+export function pancakeSort (array) {
   for (let subarraySize = array.length; subarraySize > 1; subarraySize--) {
     const maximumIndex = findMax(array, 0, subarraySize - 1)