Javascript Error对象

最新推荐文章于 2024-02-21 20:28:49 发布

转载最新推荐文章于 2024-02-21 20:28:49 发布 · 574 阅读

文章标签：

本文探讨了在不同浏览器中创建JavaScript Error对象的差异。详细对比了IE、Firefox、Opera、Google Chrome和Safari等浏览器如何处理错误信息、文件名及行号参数，揭示了各浏览器对Error对象构造函数的支持特性和非标准实现。

摘要生成于 C知道，由 DeepSeek-R1 满血版支持，前往体验 >

Javascript的Error对象在不同浏览器是不一样的.

IE比较搞，第一个参数是number，其他浏览器第一个参数是message。Firefox则除了支持message以外还加入了两个参数fileName和lineNumber。但是在其文档中注明了非标准（Non-standard）

IE的文档http://msdn.microsoft.com/en-us/library/ie/dww52sbt(v=vs.94).aspx

Firefox的文档https://developer.mozilla.org/en-US/docs/JavaScript/Reference/Global_Objects/Error

各个浏览器的比较文档

http://help.dottoro.com/ljfhismo.php

http://www.aptana.com/reference/html/api/Error.html

Creating a new Error object:

Internet Explorer supports the following form:

var errorObj = new Error([number[, description]]);

number
Optional. Integer that specifies the error code. Default is 0. Sets the error property of the Error object.

message
Optional. String that specifies the message of the error. Default is an empty string. Sets the description and messageproperties of the Error object.

Firefox supports the following form:

var errorObj = new Error([message[, fileName[, lineNumber]]]);

message
Optional. String that specifies the message of the error. Default is an empty string. Sets the description and messageproperties of the Error object.

fileName
Optional. String that specifies the name of the file where the error occurs. Default is the file where the Error object is created. Sets the fileName property of the Error object.

lineNumber
Optional. Integer that specifies the line number where the error occurs. Default is the line number, where the Errorobject is created. Sets the lineNumber property of the Error object.

Opera, Google Chrome and Safari support the following form:

var errorObj = new Error([message]);

message
Optional. String that specifies the message of the error. Default is an empty string. Sets the description and messageproperties of the Error object.