Does the bind polyfill work on arrow functions?
No. Arrow functions have lexical this. call (used inside the polyfill) cannot change an arrow's this. This is the same behavior as the native bind.
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More FAQs in bind Polyfill Interview Questions
Function.prototype.myBind = function(context, ...presetArgs) { const fn = this; return function(...laterArgs) { return fn.call(context, ...presetArgs, ...laterArgs); }; }.
Check this instanceof boundFn. If true, return new fn(...presetArgs, ...laterArgs). Otherwise, return fn.call(context, ...presetArgs, ...laterArgs).
Use rest parameters: myBind = function(context, ...presetArgs). Spread them in the returned function: fn.call(context, ...presetArgs, ...laterArgs). This merges preset and later arguments.
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