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Difference between call, apply, and bind.

Entry JavaScript
Quick Answer call(thisArg, arg1, arg2) and apply(thisArg, [arg1, arg2]) both invoke immediately รขโ‚ฌโ€ call takes args individually, apply takes an array. bind(thisArg) returns a new function permanently bound to that this รขโ‚ฌโ€ not invoked immediately. Use: call/apply for method borrowing, bind for event listeners where this would otherwise be wrong.

Answer

  • call: invoke with this + args list.
  • apply: invoke with this + args array.
  • bind: returns a new function with bound this.
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