Challenge set
JavaScript Loops
Practice JavaScript loops through six focused Challenges covering counters, collection traversal, nested iteration, and practical repetition patterns.
Work through the collection
Challenges in This Set
- 01
JavaScript
Game Start Countdown
Use a descending JavaScript for loop to count from five to one, then print a final message that starts the game for waiting players.
50XPBeginner - 02
JavaScript
Fuel Gauge
Practice a JavaScript while loop by increasing a fuel gauge in fixed steps until the tank reaches 100 percent and launch is ready.
50XPBeginner - 03
JavaScript
Supply Run
Use a JavaScript for...of loop to pack every supply in array order, then report how many items were packed for the trip.
50XPBeginner - 04
JavaScript
Passing Scores
Loop through JavaScript scores, identify every passing result, and maintain an accurate count without changing the original array.
50XPBeginner - 05
JavaScript
Obstacle Course
Control a JavaScript loop with continue and break to skip blocked course levels and stop when the final checkpoint is reached.
50XPBeginner - 06
JavaScript
Treasure Grid
Search a JavaScript grid with nested loops, locate the hidden treasure marker, and report its row and column coordinates.
50XPBeginner

