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Starter#Functions#Polyfill
Function.prototype.apply Polyfill
Implement Function.prototype.apply from scratch — identical to call except arguments arrive as a single array.
By modernDev2026-06-05Medium
apply is call with a different argument shape. Everything about context handling, Symbol keys, and cleanup is the same. The only difference: the second argument is an array (or array-like) that gets spread into the function call. Handle the case where args is omitted or not an array.
Goal: Implement myApply. Reuse your call logic — the only new piece is handling the args array.
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