feat/ add new exercise

Author: nik-rev

14_contains/README.md

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+# Exercise 13 - contains
+
+Description of the exercise goes here.

14_contains/contains.js

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+const contains = function() {
+  
+};
+  
+// Do not edit below this line
+module.exports = contains;

14_contains/contains.spec.js

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+const contains = require('./contains');
+
+describe('contains', () => {
+  test('First test description', () => {
+    // Replace this comment with any other necessary code, and update the expect line as necessary
+
+    expect(contains()).toBe('');
+  });
+  
+  test.skip('Second test description', () => {
+    // Replace this comment with any other necessary code, and update the expect line as necessary
+
+    expect(contains()).toBe('');
+  });
+});

14_contains/solution/contains-solution.js

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+const contains = function() {
+  // Replace this comment with the solution code
+};
+  
+// Do not edit below this line
+module.exports = contains;

14_contains/solution/contains-solution.spec.js

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+const contains = require('./contains-solution');
+
+describe('contains', () => {
+  test('First test description', () => {
+    // Replace this comment with any other necessary code, and update the expect line as necessary
+
+    expect(contains()).toBe('');
+  });
+  
+  test('Second test description', () => {
+    // Replace this comment with any other necessary code, and update the expect line as necessary
+
+    expect(contains()).toBe('');
+  });
+});