diff --git a/Bit-Manipulation/BinaryCountSetBits.js b/Bit-Manipulation/BinaryCountSetBits.js
index b879f3bd67..b959caf062 100644
--- a/Bit-Manipulation/BinaryCountSetBits.js
+++ b/Bit-Manipulation/BinaryCountSetBits.js
@@ -16,7 +16,7 @@ function BinaryCountSetBits(a) {
let count = 0
while (a) {
- a &= (a - 1)
+ a &= a - 1
count++
}
diff --git a/DIRECTORY.md b/DIRECTORY.md
index aea7b1548f..ce660a3975 100644
--- a/DIRECTORY.md
+++ b/DIRECTORY.md
@@ -166,6 +166,7 @@
* [Area](Maths/Area.js)
* [ArithmeticGeometricMean](Maths/ArithmeticGeometricMean.js)
* [ArmstrongNumber](Maths/ArmstrongNumber.js)
+ * [AutomorphicNumber](Maths/AutomorphicNumber.js)
* [AverageMean](Maths/AverageMean.js)
* [AverageMedian](Maths/AverageMedian.js)
* [BinaryConvert](Maths/BinaryConvert.js)
diff --git a/Maths/AutomorphicNumber.js b/Maths/AutomorphicNumber.js
index d1b6608316..ba008271fc 100644
--- a/Maths/AutomorphicNumber.js
+++ b/Maths/AutomorphicNumber.js
@@ -35,6 +35,6 @@ export const isAutomorphic = (n) => {
n = Math.floor(n / 10)
n_sq = Math.floor(n_sq / 10)
}
-
+
return true
}
diff --git a/Maths/test/AutomorphicNumber.test.js b/Maths/test/AutomorphicNumber.test.js
index 19b963388c..57f40d27ee 100644
--- a/Maths/test/AutomorphicNumber.test.js
+++ b/Maths/test/AutomorphicNumber.test.js
@@ -9,19 +9,19 @@ describe('AutomorphicNumber', () => {
})
test.each([
- { n: -3 , expected: false },
- { n: -25 , expected: false },
+ { n: -3, expected: false },
+ { n: -25, expected: false }
])('should return false when n is negetive', ({ n, expected }) => {
expect(isAutomorphic(n)).toBe(false)
})
test.each([
- { n: 7 , expected: false },
- { n: 83 , expected: false },
- { n: 0 , expected: true },
- { n: 1 , expected: true },
- { n: 376 , expected: true },
- { n: 90625 , expected: true },
+ { n: 7, expected: false },
+ { n: 83, expected: false },
+ { n: 0, expected: true },
+ { n: 1, expected: true },
+ { n: 376, expected: true },
+ { n: 90625, expected: true }
])('should return $expected when n is $n', ({ n, expected }) => {
expect(isAutomorphic(n)).toBe(expected)
})
diff --git a/Project-Euler/Problem006.js b/Project-Euler/Problem006.js
index 474de2ae96..804b165558 100644
--- a/Project-Euler/Problem006.js
+++ b/Project-Euler/Problem006.js
@@ -1,8 +1,8 @@
// https://projecteuler.net/problem=6
export const squareDifference = (num = 100) => {
- let sumOfSquares = (num)*(num+1)*(2*num+1)/6
- let sums = (num*(num+1))/2
-
+ let sumOfSquares = (num * (num + 1) * (2 * num + 1)) / 6
+ let sums = (num * (num + 1)) / 2
+
return sums ** 2 - sumOfSquares // difference of square of the total sum and sum of squares
}
diff --git a/Project-Euler/test/Problem004.test.js b/Project-Euler/test/Problem004.test.js
new file mode 100644
index 0000000000..cd6a55ac98
--- /dev/null
+++ b/Project-Euler/test/Problem004.test.js
@@ -0,0 +1,11 @@
+import { largestPalindromic } from '../Problem004.js'
+
+describe('Largest Palindromic Number', () => {
+ test('if digit is 2', () => {
+ expect(largestPalindromic(2)).toBe(9009)
+ })
+ // Project Euler Condition Check
+ test('if digit is 3', () => {
+ expect(largestPalindromic(3)).toBe(906609)
+ })
+})
diff --git a/Project-Euler/test/Problem006.test.js b/Project-Euler/test/Problem006.test.js
new file mode 100644
index 0000000000..1323a34ac2
--- /dev/null
+++ b/Project-Euler/test/Problem006.test.js
@@ -0,0 +1,11 @@
+import { squareDifference } from '../Problem006.js'
+
+describe('Square Difference', () => {
+ test('difference between the sum of the squares of the first ten natural numbers and the square of the sum', () => {
+ expect(squareDifference(10)).toBe(2640)
+ })
+ // Project Euler Condition Check
+ test('difference between the sum of the squares of the first one hundred natural numbers and the square of the sum', () => {
+ expect(squareDifference()).toBe(25164150)
+ })
+})
diff --git a/Recursive/test/BinaryEquivalent.test.js b/Recursive/test/BinaryEquivalent.test.js
index b79a455eed..ddabb7d477 100644
--- a/Recursive/test/BinaryEquivalent.test.js
+++ b/Recursive/test/BinaryEquivalent.test.js
@@ -1,29 +1,29 @@
-import { binaryEquivalent } from "../BinaryEquivalent";
+import { binaryEquivalent } from '../BinaryEquivalent'
const tests = [
- {
- test: 2,
- expectedValue: "10"
- },
- {
- test: 0,
- expectedValue: "0"
- },
- {
- test: 543,
- expectedValue: "1000011111"
- },
- {
- test: 4697621023,
- expectedValue: "100011000000000000000001000011111"
- }
+ {
+ test: 2,
+ expectedValue: '10'
+ },
+ {
+ test: 0,
+ expectedValue: '0'
+ },
+ {
+ test: 543,
+ expectedValue: '1000011111'
+ },
+ {
+ test: 4697621023,
+ expectedValue: '100011000000000000000001000011111'
+ }
]
-describe("Binary Equivalent", () => {
- test.each(tests)(
- "of $test should be $expectedValue",
- ({test, expectedValue}) => {
- expect(binaryEquivalent(test)).toBe(expectedValue);
- }
- )
+describe('Binary Equivalent', () => {
+ test.each(tests)(
+ 'of $test should be $expectedValue',
+ ({ test, expectedValue }) => {
+ expect(binaryEquivalent(test)).toBe(expectedValue)
+ }
+ )
})
diff --git a/Search/InterpolationSearch.js b/Search/InterpolationSearch.js
index e6deae496f..93f3b78b0e 100644
--- a/Search/InterpolationSearch.js
+++ b/Search/InterpolationSearch.js
@@ -36,4 +36,4 @@ export function interpolationSearch(arr, key) {
}
return -1
-}
\ No newline at end of file
+}
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