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Challenges
2,421 JavaScript challenges
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X and Y Coordinates
Hard
JavaScript
arrays
numbers
Reverse and Capitalize
Hard
JavaScript
strings
functional_programming
Little Dictionary
Hard
JavaScript
strings
conditions
Check if String Ending Matches Second String
Hard
JavaScript
validation
strings
Are the Numbers Equal?
Hard
JavaScript
conditions
logic
language_fundamentals
Shuffle the Name
Hard
JavaScript
strings
sorting
Check if the Same Case
Hard
JavaScript
strings
validation
Is the String in Order?
Hard
JavaScript
logic
strings
validation
Is the String a Palindrome?
Hard
JavaScript
strings
validation
loops
Additive Inverse
Hard
JavaScript
arrays
math
higher_order_functions
Return First and Last Parameter
Hard
JavaScript
language_fundamentals
Nth Smallest Integer
Hard
JavaScript
arrays
sorting
language_fundamentals
Strange Pair
Hard
JavaScript
strings
language_fundamentals
validation
Odd Up, Even Down
Hard
JavaScript
arrays
control_flow
numbers
Applying Discounts
Hard
JavaScript
arrays
algorithms
language_fundamentals
Array from Comma-Delimited String
Hard
JavaScript
strings
loops
State Names and Abbreviations
Hard
JavaScript
arrays
formatting
loops
InnoaaaaaKod
Hard
JavaScript
formatting
strings
loops
Date Format
Hard
JavaScript
formatting
dates
arrays
Binary to Decimal Converter
Hard
JavaScript
loops
math
numbers
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