Project euler problem 10 solution and test script

Project-Euler/Problem10.js

@@ -0,0 +1,22 @@
+// https://projecteuler.net/problem=10
+
+const isPrime = (number) => {
+  let flag = true
+  for (let j = number - 1; j >= 2; j--) {
+    if (number % j === 0) {
+      flag = false
+    }
+  }
+  return flag
+}
+
+const calculateSumOfPrimeNumbers = (maxNumber) => {
+  let sum = 0
+  for (let i = maxNumber - 1; i >= 2; i--) {
+    if (isPrime(i) === true) {
+      sum += i
+    }
+  }
+  return sum
+}
+export { calculateSumOfPrimeNumbers }

Project-Euler/test/Problem10.test.js

@@ -0,0 +1,16 @@
+import { calculateSumOfPrimeNumbers } from '../Problem10'
+
+describe('checkAnagram', () => {
+  it('Return the sum of prime numbers upto but less than 14', () => {
+    const SUT = calculateSumOfPrimeNumbers(14)
+    expect(SUT).toBe(41)
+  })
+  it('Return the sum of prime numbers upto but less than 10', () => {
+    const SUT = calculateSumOfPrimeNumbers(10)
+    expect(SUT).toBe(17)
+  })
+  it('Return the sum of prime numbers upto but less than 100', () => {
+    const SUT = calculateSumOfPrimeNumbers(100)
+    expect(SUT).toBe(1060)
+  })
+})