What is partial application with bind?
Presetting arguments: const add5 = add.bind(null, 5) creates a function where the first arg is always 5.
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More FAQs in call, apply, and bind in JavaScript Explained
call and apply invoke immediately (call takes comma args, apply takes an array). bind returns a new function with this permanently bound, to be called later.
Use Array.prototype.slice.call(arguments) to borrow slice and convert the array-like arguments to a real array.
No. Arrow functions inherit this lexically. call, apply, and bind cannot change an arrow's this.
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