JavaScript LeetCode Challenge: Filter Elements from Array

🚀 LeetCode Practice Update Solved LeetCode #28 – Find the Index of the First Occurrence in a String. This problem helped me revise: • String traversal logic • Edge case handling • Time complexity trade-offs between brute force and optimized approaches Small steps, steady progress toward stronger problem-solving skills in JavaScript. 💡 Consistency > Intensity #LeetCode #ProblemSolving #JavaScript #DSA #FrontendDeveloper #CodingJourney

Day 3/30 – JavaScript Challenge #30daysOfLeetCode Solved LeetCode: To Be Or Not To Be ✅ The solution implements a custom expect function that returns an object with two methods: toBe and notToBe. These methods compare values using strict equality (===) and throw meaningful errors when conditions fail. Closures are used to retain access to the initial value, enabling clean and readable test-like behavior without global variables. ✅ All test cases passed 📌 Learning how testing utilities work internally and strengthening JavaScript fundamentals On to the next problem 💪 #30DaysOfJavaScript #JavaScript #LeetCode #ProblemSolving #LearningInPublic #CodingJourney #WebDevelopment

✅ Solved LeetCode: First Bad Version (278) Used a clean binary search approach in JavaScript to find the first bad version efficiently. - Narrowed the search space using left & right pointers - Checked mid with isBadVersion() - Eliminated unnecessary versions on each step ⏱ Time: O(log n) 📦 Space: O(1) Simple, optimal, and efficient! 🚀 #LeetCode #BinarySearch #JavaScript #DSA #Coding

Day 4/30 – JavaScript Challenge #30daysOfLeetCode Solved LeetCode 2635: Apply Transform Over Each Element in Array using JavaScript ✅ The solution recreates the behavior of Array.map by iterating through the array and applying a given transformation function to each element along with its index. This helps understand how higher-order functions work internally and reinforces fundamentals like loops, function callbacks, and index-based operations. ✅ All test cases passed 📌 Focusing on mastering core JavaScript concepts without relying on built-in methods On to the next challenge 💪 #30DaysOfJavaScript #JavaScript #LeetCode #ProblemSolving #LearningInPublic #CodingJourney #WebDevelopment

Day 5/30 – JavaScript Challenge #30daysOfLeetCode Solved LeetCode 2634: Filter Elements from Array using JavaScript ✅ The solution recreates the behavior of Array.filter by manually iterating through the array and applying a filtering function to each element and its index. Only values that evaluate to truthy are included in the final array, which helped reinforce concepts like callbacks, loops, and truthy vs falsy values in JavaScript. ✅ All test cases passed 📌 Strengthening JavaScript fundamentals by understanding how built-in methods work internally On to the next challenge 💪 #30DaysOfJavaScript #JavaScript #LeetCode #ProblemSolving #LearningInPublic #CodingJourney #WebDevelopment

Conditional statements are one of the most important concepts in JavaScript. They allow your code to make decisions based on different conditions using: • if • else if • else From form validation to user authentication, conditional logic exists everywhere. I teach JavaScript concepts daily and apply them using real-world projects on my YouTube channel, Code Hunter Sharath. 🎥 Playlist: 52 Weeks • 52 JavaScript Projects 👍 Follow me for daily JavaScript concepts 🔔 Subscribe to learn by building #JavaScript #LearnJavaScript #WebDevelopment #FrontendDeveloper #Coding

🚀 LeetCode Practice Update Solved LeetCode #66 – Plus One. This problem was a good reminder of how small edge cases matter, especially: • Handling carry correctly • Working with arrays as numbers • Writing clean and efficient logic Strengthening fundamentals step by step using JavaScript. #LeetCode #DSA #JavaScript #ProblemSolving #CodingJourney #FrontendDeveloper

🚀 LeetCode Practice Update Solved LeetCode #58 – Length of Last Word. This problem reinforced the importance of: • Careful string traversal • Trimming extra spaces • Handling edge cases cleanly Simple problem, but great for strengthening fundamentals in JavaScript. Consistency is the key 🔑 #LeetCode #DSA #JavaScript #ProblemSolving #CodingJourney #FrontendDeveloper

Tiny JavaScript methods, massive clarity. Today’s snippet breaks down how join, substring, slice, and splice actually behave — same syntax, very different output. If you’ve ever been confused why slice doesn’t modify the array but splice does, this one is for you. Clean examples, zero fluff, straight logic. Save this for revision and share it with someone learning JavaScript fundamentals. Follow for more daily JS clarity and real interview-level concepts. #JavaScript #JSBasics #FrontendDevelopment #WebDeveloper #CodingSnippets #LearnJavaScript #DeveloperTips #ProgrammingLogic #CodeDaily

Computers don’t get tired of repetition. That’s why JavaScript has for loops. Today I learned how a single loop can run the same task multiple times—cleanly and efficiently. #JavaScript #TechFacts #LearningInPublic #CodeLife