Function.prototype.arguments

Deprecated

Avoid using this feature in new projects. JavaScript strict mode prohibits accessing the caller and arguments properties of a Function object. This feature may be a candidate for removal from web standards or browsers.

Function arguments arguments arguments

Function arguments arguments TypeError

arguments

f f.arguments

arguments null

ECMAScript Function.prototype arguments get set TypeErrorarguments Chrome Firefox Safari Function.prototype.arguments this

(function f() {
  if (Object.hasOwn(f, "arguments")) {
    console.log(
      "arguments ",
      Object.getOwnPropertyDescriptor(f, "arguments"),
    );
  } else {
    console.log(
      "f  arguments  f.[[Prototype]].arguments",
    );
    console.log(
      Object.getOwnPropertyDescriptor(
        Object.getPrototypeOf(f),
        "arguments",
      ).get.call(f),
    );
  }
})();

//  Chrome 
// arguments  {value: Arguments(0), writable: false, enumerable: false, configurable: false}

//  Firefox 
// f  arguments  f.[[Prototype]].arguments
// Arguments {  }

arguments

function f(n) {
  g(n - 1);
}

function g(n) {
  console.log(`${g.arguments[0]}`);
  if (n > 0) {
    f(n);
  }
  console.log(`${g.arguments[0]}`);
}

f(2);

console.log(`${g.arguments}`);

// 
// 1
// 0
// 0
// 1
// null

arguments

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