[added]: First Challenge

Author: gauravfs-14

.github/pull_request_template.md

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+## New Pull Request
+
+<!-- Before Submitting the pull request make sure the following checklist is complete. -->
+
+- [ ] Added the problem statement to the README.md
+- [ ] Added the solution to the problem in /solutions/problem_title/answer.js
+- [ ] Descriptive Comments
+- [ ] Explained the solution in /solutions/problem_title/readme.md
+- [ ] Format for pull request [type]: Description
+- [ ] Bug free code
+
+<!-- For referencing the Issue solved use Fixed: #issueNumber -->

README.md

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+# JS Coding Challenges
+
+This repository contains a collection of JavaScript coding challenges that are designed to help you improve your skills and test your knowledge of the language. Each challenge is accompanied by a README file that explains the problem statement, input/output, and any additional requirements.
+
+The answers will be available in /solutions/problem_title/answer.js while the explanation will be given in /solutions/problem_title/readme.md.
+
+Make sure to star the repository if you find it useful. And contributions to the repository are welcome.
+
+## Challenge 1: FizzBuzz
+
+Write a program that prints the numbers from 1 to 100. But for multiples of three, print "Fizz" instead of the number and for the multiples of five, print "Buzz". For numbers which are multiples of both three and five, print "FizzBuzz". For example, your program should print:
+
+```javascript
+    1
+2
+Fizz
+4
+Buzz
+Fizz
+7
+8
+Fizz
+Buzz
+11
+Fizz
+13
+14
+FizzBuzz
+16
+...
+```

solutions/ch_1_FizzBuzz/answer.js

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+// Iterate from 1 to 100
+for (let i = 1; i <= 100; i++) {
+  // If the number is divisible by both 3 and 5, print 'FizzBuzz'
+  if (i % 3 === 0 && i % 5 === 0) {
+    console.log("FizzBuzz");
+  }
+  // If the number is divisible by 3, print 'Fizz'
+  else if (i % 3 === 0) {
+    console.log("Fizz");
+  }
+  // If the number is divisible by 5, print 'Buzz'
+  else if (i % 5 === 0) {
+    console.log("Buzz");
+  }
+  // Otherwise, print the number itself
+  else {
+    console.log(i);
+  }
+}

solutions/ch_1_FizzBuzz/readme.md

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+# Challenge 1: FizzBuzz
+
+Write a program that prints the numbers from 1 to 100. But for multiples of three, print "Fizz" instead of the number and for the multiples of five, print "Buzz". For numbers which are multiples of both three and five, print "FizzBuzz". For example, your program should print:
+
+```javascript
+    1
+2
+Fizz
+4
+Buzz
+Fizz
+7
+8
+Fizz
+Buzz
+11
+Fizz
+13
+14
+FizzBuzz
+16
+...
+```
+
+## Answer Explanation
+
+In short, the program loops over the numbers from 1 to 100, and for each number, it checks if it is divisible by 3, 5, or both. If it is divisible by 3, it prints 'Fizz', if it is divisible by 5, it prints 'Buzz', and if it is divisible by both 3 and 5, it prints 'FizzBuzz'. If it is not divisible by either 3 or 5, it simply prints the number itself.