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Challenges
2,421 JavaScript challenges
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Temperature Converter
Hard
JavaScript
algorithms
numbers
math
Do All Bigrams Exist?
Hard
JavaScript
strings
higher_order_functions
validation
Histogram Function
Hard
JavaScript
data_structures
logic
strings
Pronouncing the Xs
Hard
JavaScript
strings
formatting
conditions
RegExp: Validate Pin
Hard
JavaScript
regex
validation
Triple Letter Groupings
Hard
JavaScript
loops
strings
arrays
Simple Counting
Hard
JavaScript
logic
math
numbers
White Spaces Between Lower and Uppercase Letters
Hard
JavaScript
regex
formatting
strings
Add the Values of the Symbols in a Matrix
Hard
JavaScript
strings
numbers
math
A Simple Comparison
Hard
JavaScript
math
numbers
arrays
Sorting Time
Hard
JavaScript
algorithms
logic
sorting
Promises IX: Composition Introduction
Hard
JavaScript
functional_programming
Catalan Number
Hard
JavaScript
math
language_fundamentals
Diamond Shaped Array
Hard
JavaScript
arrays
loops
numbers
Find First Character That Repeats
Hard
JavaScript
strings
logic
loops
Geometric Mean
Hard
JavaScript
math
numbers
geometry
Integral of a Function
Hard
JavaScript
math
numbers
Dice Score
Hard
JavaScript
numbers
validation
games
Vowel to Vowel Links
Hard
JavaScript
regex
strings
loops
The Karaca's Encryption Algorithm
Hard
JavaScript
algorithms
formatting
cryptography
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