npm run style result

Author: VinWare

Dynamic-Programming/MaxProductOfThree.js

@@ -5,15 +5,15 @@
  * @param {number[]} arrayItems
  * @returns number
  */
-export function maxProductOfThree(arrayItems) {
+export function maxProductOfThree (arrayItems) {
   // if size is less than 3, no triplet exists
-  let n = arrayItems.length
+  const n = arrayItems.length
   if (n < 3) throw new Error('Triplet cannot exist with the given array')
-  let max1 = arrayItems[0],
-    max2 = -1,
-    max3 = -1,
-    min1 = arrayItems[0],
-    min2 = -1
+  let max1 = arrayItems[0]
+  let max2 = -1
+  let max3 = -1
+  let min1 = arrayItems[0]
+  let min2 = -1
   for (let i = 1; i < n; i++) {
     if (arrayItems[i] > max1) {
       max3 = max2
@@ -32,7 +32,7 @@ export function maxProductOfThree(arrayItems) {
       min2 = arrayItems[i]
     }
   }
-  let prod1 = max1 * max2 * max3,
-    prod2 = max1 * min1 * min2
+  const prod1 = max1 * max2 * max3
+  const prod2 = max1 * min1 * min2
   return Math.max(prod1, prod2)
 }

Maths/ExtendedEuclideanGCD.js

@@ -1,60 +1,60 @@
 /**
  * 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
- * 
+ *
  * This implementation uses an iterative approach to calculate
  */
 
 /**
- * 
+ *
  * @param {Number} arg1 first argument
  * @param {Number} arg2 second argument
  * @returns Array with GCD and first and second Bézout coefficients
  */
 const extendedEuclideanGCD = (arg1, arg2) => {
-    if(typeof arg1 != 'number' || typeof arg2 != 'number') throw new TypeError('Not a Number');
-    if(arg1 < 1 || arg2 < 1) throw new TypeError('Must be positive numbers');
-
-    // Make the order of coefficients correct, as the algorithm assumes r0 > r1
-    if (arg1 < arg2) {
-        const res = extendedEuclideanGCD(arg2,arg1)
-        const temp = res[1]
-        res[1] = res[2]
-        res[2] = temp
-        return res;
-    }
-
-    // At this point arg1 > arg2
-
-    // Remainder values
-    let r0 = arg1
-    let r1 = arg2
-
-    // Coefficient1 values
-    let s0 = 1
-    let s1 = 0
-
-    // Coefficient 2 values
-    let t0 = 0
-    let t1 = 1
-    
-    while(r1 != 0) {
-        const q = Math.floor(r0 / r1);
-
-        const r2 = r0 - r1*q;
-        const s2 = s0 - s1*q;
-        const t2 = t0 - t1*q;
-        
-        r0 = r1
-        r1 = r2
-        s0 = s1
-        s1 = s2
-        t0 = t1
-        t1 = t2
-    }
-    return [r0,s0,t0];
+  if (typeof arg1 !== 'number' || typeof arg2 !== 'number') throw new TypeError('Not a Number')
+  if (arg1 < 1 || arg2 < 1) throw new TypeError('Must be positive numbers')
+
+  // Make the order of coefficients correct, as the algorithm assumes r0 > r1
+  if (arg1 < arg2) {
+    const res = extendedEuclideanGCD(arg2, arg1)
+    const temp = res[1]
+    res[1] = res[2]
+    res[2] = temp
+    return res
+  }
+
+  // At this point arg1 > arg2
+
+  // Remainder values
+  let r0 = arg1
+  let r1 = arg2
+
+  // Coefficient1 values
+  let s0 = 1
+  let s1 = 0
+
+  // Coefficient 2 values
+  let t0 = 0
+  let t1 = 1
+
+  while (r1 != 0) {
+    const q = Math.floor(r0 / r1)
+
+    const r2 = r0 - r1 * q
+    const s2 = s0 - s1 * q
+    const t2 = t0 - t1 * q
+
+    r0 = r1
+    r1 = r2
+    s0 = s1
+    s1 = s2
+    t0 = t1
+    t1 = t2
+  }
+  return [r0, s0, t0]
 }
 
-export { extendedEuclideanGCD };
+export { extendedEuclideanGCD }
 // ex

Maths/test/ExtendedEuclideanGCD.test.js

@@ -6,11 +6,11 @@ describe('extendedEuclideanGCD', () => {
     expect(extendedEuclideanGCD(46, 240)).toMatchObject([2, 47, -9])
   })
   it('should give error on non-positive arguments', () => {
-      expect(() => extendedEuclideanGCD(0,240)).toThrowError(new TypeError('Must be positive numbers'))
-      expect(() => extendedEuclideanGCD(46,-240)).toThrowError(new TypeError('Must be positive numbers'))
+    expect(() => extendedEuclideanGCD(0, 240)).toThrowError(new TypeError('Must be positive numbers'))
+    expect(() => extendedEuclideanGCD(46, -240)).toThrowError(new TypeError('Must be positive numbers'))
   })
   it('should give error on non-numeric arguments', () => {
-      expect(() => extendedEuclideanGCD('240',46)).toThrowError(new TypeError('Not a Number'));
-      expect(() => extendedEuclideanGCD([240,46])).toThrowError(new TypeError('Not a Number'));
+    expect(() => extendedEuclideanGCD('240', 46)).toThrowError(new TypeError('Not a Number'))
+    expect(() => extendedEuclideanGCD([240, 46])).toThrowError(new TypeError('Not a Number'))
   })
 })