JS Built-ins
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Functioncallbeginner

Function.prototype.call() — bind this

📖 Usage Example
function greet() { return this.name }
greet.call({ name: 'Bob' })  // → 'Bob'

call() invokes a function immediately with a specified this value.

fn.call(thisArg)

call() invokes a function with a specified this value. The first argument becomes this inside the function.

Challenge: Use call() so that greet returns the name from its this context.

💡 Hints (2)
  • • `fn.call(ctx, arg1, arg2)` sets `this` to `ctx`.
  • • Pass the object as the first argument to `call()`.