Get Error Line Number Javascript
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Javascript Try Catch Error Line Number
Stack Overflow Community Stack Overflow is a community of 4.7 million programmers, just like you, helping each other. Join them; it only takes a node.js get current line number minute: Sign up How to get JavaScript caller function line number? How to get JavaScript caller source URL? up vote 75 down vote favorite 32 I am using the following for getting the JavaScript caller function name: var callerFunc = arguments.callee.caller.toString(); nodejs try catch line number callerFuncName = (callerFunc.substring(callerFunc.indexOf("function") + 8, callerFunc.indexOf("(")) || "anoynmous") Is there a way to discover the line number from which the method was called? Also, is there a way to get the name of the JavaScript file the method was called from? Or the source URL? javascript share|improve this question edited Mar 3 '14 at 21:07 Kara 3,15773147 asked Aug 27 '09 at 12:49 Tal 56331018 2 I don't think this is possible in IE, or else we would have a way to
Node Error Line Number
get around there CRAPPY error messages that deliver no detail. But if it is possible I would LOVE to know as well! –Zoidberg Aug 27 '09 at 13:00 add a comment| 13 Answers 13 active oldest votes up vote 20 down vote accepted kangax's solution introduces unnecessary try..catch scope. If you need to access the line number of something in JavaScript (as long as you are using Firefox or Opera), just access (new Error).lineNumber. share|improve this answer answered Aug 28 '09 at 17:16 Eli Grey 22.8k105283 7 Hi, Thanks for that addon. do you know if its possible to get line number from previous call ? Lets say method A calls B , and now in B I would like to know in what line under A the call was made? –Tal Aug 30 '09 at 11:12 65 This is ticked, but doesn't answer the question, which is how to get the line number of the caller function. –mikemaccana Apr 17 '12 at 8:45 2 Also, this is extremely limited. The best solution is to throw an error and use regex on the error.stack which is available in all modern browsers. You can easily extract that path, file, line, and column. No problem. –arctelix Oct 4 '15 at 3:49 add a comment| up vote 62 down vote This works for me in chrome/QtWebView function getErrorObject(){ try { throw Error('') } catch(err) { return err; } } var err = getErrorObject(); var caller
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Javascript __line__
Error Line Numbers up vote 11 down vote favorite I have a jsp with lots of javascript code. Whenever there is a javascript error on the page, shown in the status bar of the IE browser, the line number reported to contain http://stackoverflow.com/questions/1340872/how-to-get-javascript-caller-function-line-number-how-to-get-javascript-caller the error, does not match with the line number that actually contains the error. I am doing a right click>view source to find the line number reported. But that line does not contain the error. The error, I assume, is in some other line. What could be the reason for the erroneous line numbers being reported. Please Help. javascript numbers line share|improve this question asked Jan 6 '10 at 9:03 The Machine 5464926 I can only use IE to test my application. Hence http://stackoverflow.com/questions/2011837/javascript-error-line-numbers firebug is not going to be of much help. Also, i used to get the correct line numbers say about a month ago.I dont know how all of a sudden there is this frustrating discrepancy. –The Machine Jan 6 '10 at 9:13 1 In addition to the great suggestions about using the IE dev tool in IE > 8, you can also get Firebug Lite, which works in any browser, so Firebug can actually be of help :) –Kato Feb 1 '12 at 23:04 add a comment| 5 Answers 5 active oldest votes up vote 7 down vote As noted in other answers, IE is bad at reporting line numbers for errors. However, the built-in debugger (press F12) in IE8 and later is much more helpful, so I suggest you try that. share|improve this answer edited Jun 25 '13 at 13:49 answered Jan 6 '10 at 9:17 Tim Down 193k42309393 I agree. "Tools -> Developer Tools" is what you want instead of "View Source" Also if you change your internet options to stop/prompt on javascript errors, it usually comes up with a "do you want to debug?" button which takes you straight in to the dev tools –Graza Jan 6 '10 at 11:47 add a comment| up vote 4 down vote accepted I found the problem after a lot of trials. Hopefully, this will be of use to some guys facing this frustrating problem. RightClick>View Source is the code what the browser sees to render the page. However, that is
& Guides Learn the Web Tutorials References Developer Guides Accessibility Game development ...more docs Mozilla Docs Add-ons Firefox WebExtensions Developer ToolsFeedback Get Firefox help Get https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Error web development help Join the MDN community Report a content problem Report https://bytes.com/topic/javascript/answers/90742-try-catch-error-handling-display-line-number a bug Search Search Languages Català (ca) Deutsch (de) Español (es) Français (fr) Bahasa Indonesia (id) 日本語 (ja) 한국어 (ko) Polski (pl) Português (do Brasil) (pt-BR) Русский (ru) 中文 (简体) (zh-CN) 正體中文 (繁體) (zh-TW) Add a translation Edit Advanced Advanced History Print this article MDN Web technology For developers JavaScript line number JavaScript reference Standard built-in objects Error Your Search Results ariyankhan josephmcasey AlexanderFradiani fscholz mondwan SphinxKnight janosch-x davidchase Mingun shawnacscott Sheppy ethertank Nickolay evilpie trevorh teoli davidbourguignon secoif DomenicDenicola dgchurchill timemachine3030 Sevenspade Potappo Sephr Brettz9 Mgjbot Allanbonadio Ptak82 JustinLudwig Error In This Article SyntaxParametersDescriptionError typesPropertiesMethodsError instancesPropertiesStandard propertiesVendor-specific extensionsMicrosoftMozillaMethodsExamplesThrowing a generic errorHandling a specific errorCustom Error TypesSpecificationsBrowser compatibilitySee also The Error constructor creates an error error line number object. Instances of Error objects are thrown when runtime errors occur. The Error object can also be used as a base object for user-defined exceptions. See below for standard built-in error types. Syntax new Error([message[, fileName[, lineNumber]]]) Parameters message Optional. Human-readable description of the error. fileName Optional. The value for the fileName property on the created Error object. Defaults to the name of the file containing the code that called the Error() constructor. lineNumber Optional. The value for the lineNumber property on the created Error object. Defaults to the line number containing the Error() constructor invocation. Description Runtime errors result in new Error objects being created and thrown. This page documents the use of the Error object itself and its use as a constructor function. For a list of properties and methods inherited by Error instances, see Error.prototype. Error types Besides the generic Error constructor, there are six other core error constructors in JavaScript. For client-side exceptions, see Exception Handling Statements. EvalError Creates an instance representing an error that occurs regarding the global function eval(). InternalError Creates an instance representing an error that occurs when an internal
Ask a Question Need help? Post your question and get tips & solutions from a community of 418,553 IT Pros & Developers. It's quick & easy. try-catch error handling -- display line number? P: n/a Kim Haines I need help finding where an error is occuring in my code. I use a try-catch block like this in my global.asa: try { //my code } catch (e) { Application('errormsg') = ("An exception occurred in the script. Error name: " + e.name + ". Error description: " + e.description + ". Error number: " + e.number + ". Error message: " + e.message); } And this is what is SOMETIMES returned when I display Application('errormsg'), the rest of the time, it works: An exception occurred in the script. Error name: Error. Error description: Path not found. Error number: -2146828212. Error message: Path not found But I don't know which path is not found! (I'm using the filesystem object and importing data from a file into SQL.) Is there a way to display the line number of the error or more details? Or do I just have to try to catch the error by going through each bit of code? Jul 20 '05 #1 Post Reply Share this Question 3 Replies P: n/a Janwillem Borleffs "Kim Haines"