JS Built-ins
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Functionbindbeginner

Function.prototype.bind() — returns a function

📖 Usage Example
const obj = { x: 10 }
function getX() { return this.x }
const fn = getX.bind(obj)
fn()  // → 10

Use bind() when passing a method as a callback to preserve its this context.

bind() returns a function

bind() always returns a new function regardless of the original function. typeof the result is 'function'.

Challenge: Verify that typeof greet.bind({}) returns 'function'.

💡 Hints (1)
  • • `bind()` always returns a new function object.