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Challenges
2,421 JavaScript challenges
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Series and Parallel Resistor Calculator
Hard
JavaScript
arrays
numbers
Apocalyptic Numbers
Hard
JavaScript
numbers
strings
validation
Coaxial Cable Impedance
Hard
JavaScript
math
physics
Every Value Needs Some Testing (To Pass)
Hard
JavaScript
conditions
validation
Characters and ASCII Code
Hard
JavaScript
objects
higher_order_functions
Palindromic Dates
Hard
JavaScript
dates
strings
validation
RegEx: Boundary Assertions VI
Hard
JavaScript
language_fundamentals
formatting
regex
N-Sized Parts
Hard
JavaScript
strings
arrays
RegEx XXII : Unicode property escapes
Hard
JavaScript
regex
formatting
Centroid of a Triangle
Hard
JavaScript
algebra
math
Count the Number of Duplicate Characters
Hard
JavaScript
strings
validation
interview
Function to Arrow Function
Hard
JavaScript
strings
logic
Algorithms II: The Euclidean Algorithm
Hard
JavaScript
algorithms
math
logic
Subset Validation
Hard
JavaScript
validation
higher_order_functions
Design Patterns I: JavaScript Classes?!?
Hard
JavaScript
classes
data_structures
language_fundamentals
Recreating Multiplication
Hard
JavaScript
numbers
math
Pages in a Book
Hard
JavaScript
numbers
math
validation
Swap the Numbers
Hard
JavaScript
bit_operations
control_flow
language_fundamentals
Cluster Vowels, Single Out Consonants
Hard
JavaScript
strings
regex
Find the Odd Integer
Hard
JavaScript
math
loops
arrays
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