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JavaScript challenge · Frontend
Array.prototype.filter
Difficulty
easy
Time
~15m
Format
Single
Grading
Auto-graded
#frontend#javascript#typescript#arrays#higher-order
Mission file // read carefullyeasy
Implement filter(arr, fn) mirroring Array.prototype.filter: return a new array of the elements for which fn(value, index, array) is truthy.
Build with
TypeScriptJavaScript
Hidden test suite
Auto-graded on submit
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