solution: ProjectEuler-007 (#1142)

* 📦 NEW: Added solution for ProjectEuler-007

* 🐛 FIX: Spelling mistake fixes

* 👌 IMPROVE: changed variable name from `inc` to `candidateValue` and thrown error in case of invalid input

* 👌 IMPROVE: Modified the code

Co-authored-by: Omkarnath Parida <omkarnath.parida@yocket.in>

Project-Euler/test/Problem007.test.js

@@ -0,0 +1,17 @@
+import { nthPrime } from '../Problem007.js'
+
+describe('checking nth prime number', () => {
+  it('should be invalid input if number is negative', () => {
+    expect(() => nthPrime(-3)).toThrowError('Invalid Input')
+  })
+  it('should be invalid input if number is 0', () => {
+    expect(() => nthPrime(0)).toThrowError('Invalid Input')
+  })
+  test('if the number is greater than 0', () => {
+    expect(nthPrime(10)).toBe(29)
+  })
+  // Project Euler Condition Check
+  test('if the number is 10001', () => {
+    expect(nthPrime(10001)).toBe(104743)
+  })
+})