TypeError: More arguments needed - JavaScript 编辑

The JavaScript exception "more arguments needed" occurs when there is an error with how a function is called. More arguments need to be provided.

Message

TypeError: argument is not an Object and is not null (Edge)
TypeError: Object.create requires at least 1 argument, but only 0 were passed
TypeError: Object.setPrototypeOf requires at least 2 arguments, but only 0 were passed
TypeError: Object.defineProperties requires at least 1 argument, but only 0 were passed

Error type

TypeError.

What went wrong?

There is an error with how a function is called. More arguments need to be provided.

Examples

Required arguments not provided

The Object.create() method requires at least one argument and the Object.setPrototypeOf() method requires at least two arguments:

var obj = Object.create();
// TypeError: Object.create requires at least 1 argument, but only 0 were passed

var obj = Object.setPrototypeOf({});
// TypeError: Object.setPrototypeOf requires at least 2 arguments, but only 1 were passed

You can fix this by setting null as the prototype, for example:

var obj = Object.create(null);

var obj = Object.setPrototypeOf({}, null);

See also

• Functions