TypeError: More arguments needed
JavaScript 異常“需要更多引數”發生在函式呼叫方式錯誤時。需要提供更多引數。
訊息
TypeError: Object prototype may only be an Object or null: undefined (V8-based) TypeError: Object.create requires at least 1 argument, but only 0 were passed (Firefox) TypeError: Object.setPrototypeOf requires at least 2 arguments, but only 0 were passed (Firefox) TypeError: Object.defineProperties requires at least 1 argument, but only 0 were passed (Firefox) TypeError: Object prototype may only be an Object or null. (Safari)
錯誤型別
哪裡出錯了?
函式呼叫方式存在錯誤。需要提供更多引數。
示例
未提供所需引數
Object.create() 方法至少需要一個引數,Object.setPrototypeOf() 方法至少需要兩個引數
js
const obj = Object.create();
// TypeError: Object.create requires at least 1 argument, but only 0 were passed
const obj2 = Object.setPrototypeOf({});
// TypeError: Object.setPrototypeOf requires at least 2 arguments, but only 1 were passed
你可以透過將 null 設定為原型來解決此問題,例如
js
const obj = Object.create(null);
const obj2 = Object.setPrototypeOf({}, null);
另見
- 函式指南