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Difference between call, apply, and bind.

Entry JavaScript
Quick Answer All three invoke a function with a specific this value. call(thisArg, arg1, arg2): invokes immediately with individual args. apply(thisArg, [args]): invokes immediately with args as an array. bind(thisArg, arg1): returns a new function with this permanently bound รขโ‚ฌโ€ call it later. Use bind for event handlers and callbacks where this would otherwise be lost.

Answer

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