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• 描述
• 范例
• 规范
• 浏览器兼容性
• 另请参阅
• 相关话题

message property is a human-readable description of the error.

描述

This property contains a brief description of the error if one is available or has been set. SpiderMonkey makes extensive use of the message property for exceptions. The message property combined with the name property is used by the Error.prototype.toString() method to create a string representation of the Error.

默认情况下， message property is an empty string, but this behavior can be overridden for an instance by specifying a message as the first argument to the Error constructor .

范例

Throwing a custom error

var e = new Error('Could not parse input');
// e.message is 'Could not parse input'
throw e;
					

规范

规范
ECMAScript (ECMA-262) The definition of 'Error.prototype.message' 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
message	Chrome 1	Edge 12	Firefox 1	IE 6	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.prototype.name
• Error.prototype.toString()

元数据

• 最后修改： Mar 3, 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()