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• 构造函数
• 实例特性
• 范例
• 规范
• 浏览器兼容性
• 另请参阅
• 相关话题

TypeError object represents an error when an operation could not be performed, typically (but not exclusively) when a value is not of the expected type.

A TypeError may be thrown when:

• an operand or argument passed to a function is incompatible with the type expected by that operator or function; or
• when attempting to modify a value that cannot be changed; or
• when attempting to use a value in an inappropriate way.

构造函数

TypeError()

创建新的 TypeError 对象。

实例特性

TypeError.prototype.message

Error message. Although ECMA-262 specifies that TypeError should provide its own message property, in SpiderMonkey , it inherits Error.prototype.message .

TypeError.prototype.name

Error name. Inherited from Error .

TypeError.prototype.fileName

Path to file that raised this error. Inherited from Error .

TypeError.prototype.lineNumber

Line number in file that raised this error. Inherited from Error .

TypeError.prototype.columnNumber

Column number in line that raised this error. Inherited from Error .

TypeError.prototype.stack

Stack trace. Inherited from Error .

范例

Catching a TypeError

try {
  null.f()
} catch (e) {
  console.log(e instanceof TypeError)  // true
  console.log(e.message)               // "null has no properties"
  console.log(e.name)                  // "TypeError"
  console.log(e.fileName)              // "Scratchpad/1"
  console.log(e.lineNumber)            // 2
  console.log(e.columnNumber)          // 2
  console.log(e.stack)                 // "@Scratchpad/2:2:3\n"
}
					

Creating a TypeError

try {
  throw new TypeError('Hello', "someFile.js", 10)
} catch (e) {
  console.log(e instanceof TypeError)  // true
  console.log(e.message)               // "Hello"
  console.log(e.name)                  // "TypeError"
  console.log(e.fileName)              // "someFile.js"
  console.log(e.lineNumber)            // 10
  console.log(e.columnNumber)          // 0
  console.log(e.stack)                 // "@Scratchpad/2:2:9\n"
}
					

规范

规范
ECMAScript (ECMA-262) The definition of 'TypeError' in that specification.

浏览器兼容性

The compatibility table on this page is generated from structured data. If you'd like to contribute to the data, please check out https://github.com/mdn/browser-compat-data and send us a pull request. 更新 GitHub 上的兼容性数据

	Desktop						Mobile						Server
	Chrome	Edge	Firefox	Internet Explorer	Opera	Safari	Android webview	Chrome for Android	Firefox for Android	Opera for Android	Safari on iOS	Samsung Internet	Node.js
TypeError	Chrome 1	Edge 12	Firefox 1	IE 5.5	Opera 5	Safari 1	WebView Android 1	Chrome Android 18	Firefox Android 4	Opera Android 10.1	Safari iOS 1	Samsung Internet Android 1.0	nodejs 0.1.100
TypeError() 构造函数	Chrome 1	Edge 12	Firefox 1	IE 5.5	Opera 5	Safari 1	WebView Android 1	Chrome Android 18	Firefox Android 4	Opera Android 10.1	Safari iOS 1	Samsung Internet Android 1.0	nodejs 0.1.100

图例

完整支持

完整支持

另请参阅

• Error

元数据

• 最后修改： May 8, 2020

相关话题

1. 标准内置对象
2. Error
3. 特性
   1. Error.prototype.columnNumber
   2. Error.prototype.fileName
   3. Error.prototype.lineNumber
   4. Error.prototype.message
   5. Error.prototype.name
   6. Error.prototype.stack
4. 方法
   1. Error.prototype.toSource()
   2. Error.prototype.toString()
5. 相关页面：
6. EvalError
7. InternalError
8. RangeError
9. ReferenceError
10. SyntaxError
11. TypeError
12. URIError
13. 继承：
14. Function
15. 特性
    1. Function.arguments
    2. Function.caller
    3. Function.displayName
    4. Function.length
    5. Function.name
16. 方法
    1. Function.prototype.apply()
    2. Function.prototype.bind()
    3. Function.prototype.call()
    4. Function.prototype.toSource()
    5. Function.prototype.toString()
17. Object
18. 特性
    1. Object.prototype.__proto__
    2. Object.prototype.constructor
19. 方法
    1. Object.prototype.__defineGetter__()
    2. Object.prototype.__defineSetter__()
    3. Object.prototype.__lookupGetter__()
    4. Object.prototype.__lookupSetter__()
    5. Object.prototype.hasOwnProperty()
    6. Object.prototype.isPrototypeOf()
    7. Object.prototype.propertyIsEnumerable()
    8. Object.prototype.toLocaleString()
    9. Object.prototype.toSource()
    10. Object.prototype.toString()
    11. Object.prototype.valueOf()
    12. Object.setPrototypeOf()