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Coding Challenges
Explore our collection of coding challenges and practice questions. Filter by topic, difficulty, and more to find the perfect challenges for your learning journey.
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Javascript
The Sum of Two Numbers
Beginner
Understanding JavaScript Array Methods: Combining find, filter, every, and some Operations
Easy
JavaScript Array Map and Reduce: Calculating Total Score with Conditional Bonus Multiplier
Easy
JavaScript: Why Can't I Reassign a Value to a Const Variable?
Easy
JavascriptMutability
Understanding JavaScript Reduce Method: Alternating Addition and Subtraction with Index Conditions
Easy
JavascriptReduce
Understanding JavaScript Array unshift(): Return Value vs Modified Array
Easy
JavascriptUnshift
JavaScript: How to Calculate Sum Using reduce() Method and Store Result in Variable
Easy
JavascriptMapReduce
How to Concatenate Strings Using Template Literals in JavaScript to Create a Greeting Message
Easy
JavascriptTemplate literalsString concatenation+1
JavaScript: Using Array.map() to Multiply Each Element by a Fixed Number
Easy
JavascriptMapArray methods+1
JavaScript: How to Check if All Array Elements are Greater Than 5 Using Array.every() Method
Easy
JavascriptArray methodsEvery+1
JavaScript Array filter(): How to Filter Array Elements Based on String Length
Easy
JavascriptFilterArray methods+1
Understanding JavaScript Closure: How a Function Factory Creates a Multiplier Function
Easy
JavascriptFunctions+2
Understanding JavaScript Closure Behavior: Counter Function with Nested Returns
Easy
JavascriptFunctionsClosures+1
How to Sum Array Elements Using JavaScript's reduce() Method
Easy
JavascriptReduceArray methods+1
Understanding JavaScript Closures: How Separate Counter Instances Maintain Independent States
Easy
JavascriptFunctionsClosures+1