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Code Lab
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JavaScript
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Advanced
Advanced JavaScript
2 exercises · in teaching order
1
Deep equality
Write `deepEqual(a, b)` returning `true` when two values are structurally the same.
recursion
typeof
null handling
20m
2
Memoise a function
Write `memoize(fn)` returning a wrapped function that remembers results.
closures
Map
cache keys
18m
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