Javascript Error Line Number
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Javascript Try Catch Error Line Number
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Node.js Get Current Line Number
other. Join them; it only takes a minute: Sign up try-catch in JavaScript : how to get stack trace or line number of the original error up vote 6 down vote favorite When using TRY-CATCH in JavaScript, how to
Nodejs Try Catch Line Number
get the line number of the line that caused the error? On many browsers, the below code will work great and I will get the stack trace that points to the actual line that throw the exception. However, some browsers do not have "e.stack". IPhone's safari is one example. Is there someway to get the line number that will work for all browsers? try { // lots of code here var i = v.WillGenerateError; // how to node error line number get this line number in catch?? // lots of code here } catch (e) { alert (e.stack) // this will work on chrome, FF. will no not work on safari alert (e.line) // this will work on safari but not on IPhone } Many thanks! UPDATE: I found that e.line works on safari but still not available on IPhone, latest iOS version javascript ios mobile share|improve this question edited Jun 12 '12 at 15:10 asked Jun 11 '12 at 22:04 Greg Bala 539823 1 Why not just remove the try...catch and look at what line the standard error message points to? –robertc Jun 11 '12 at 22:10 1 @robertc I need the try...catch for other reasons. For example, I would like to capture the state when the error occurred –Greg Bala Jun 11 '12 at 22:13 Are you getting that on the iPhone at the moment? You're looking for more information in order to track down an error, there is a way to get more information than you have at the moment, why do you not want to take advantage of it? –robertc Jun 11 '12 at 22:16 @robertc For example - I would like to capture caurrent values in all function variables exactly when the error occurred. As far as I know, i can only do this in catch. I know that I c
here for a quick overview of the site Help Center Detailed answers to any questions you might have Meta Discuss the workings and policies of this site About Us javascript exception line number Learn more about Stack Overflow the company Business Learn more about hiring developers or node js console.log line number posting ads with us Stack Overflow Questions Jobs Documentation Tags Users Badges Ask Question x Dismiss Join the Stack Overflow javascript __line__ Community Stack Overflow is a community of 4.7 million programmers, just like you, helping each other. Join them; it only takes a minute: Sign up Javascript Error Line Numbers up vote 11 down vote http://stackoverflow.com/questions/10988169/try-catch-in-javascript-how-to-get-stack-trace-or-line-number-of-the-original 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 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 https://stackoverflow.com/questions/2011837/javascript-error-line-numbers 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 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
need to throw an exception and get the line number and the call stack in JavaScript, specially when we are http://www.jomendez.com/2015/02/25/throw-error-line-number-javascript/ developing a feature that will be used by other developers. Since https://bytes.com/topic/javascript/answers/90742-try-catch-error-handling-display-line-number JavaScript have far less tools to aid in debugging than other languages, when we are building a functionality it is handy to throw an exception when the developer that is using you code need to meet certain requirements. For example: function someFunction(callback){ if(typeof callback != line number ‘function’){ // throw an exception here }else{ callback(); } } With this code we can achieve it: var err; try { throw new Error('myError'); } catch (e) { err = e; } if (!!err) console.log(err.stack); if you put this code in the console (chrome) this is the result: Error: myError at :4:11 at Object.InjectedScript._evaluateOn (:777:140) at Object.InjectedScript._evaluateAndWrap error line number (:710:34) at Object.InjectedScript.evaluate (:626:21) This is the code wrapped in a function to enable re-utilization: Compatibility by Mozilla Descktop compatibility: Feature Chrome Firefox (Gecko) Internet Explorer Opera Safari Basic support (Yes) (Yes) 10 (Yes) 6 Mobile compatibility: Feature Android Chrome for Android Firefox Mobile (Gecko) IE Mobile Opera Mobile Safari Mobile Basic support Android 4 (perhaps Android 3, but not Android 2) ? ? ? ? 6 Leave a comment Post navigation « Optimizing code using Object.defineProperty instead of $scope for $watch in AngularJs What’s coming in EcmaScript 6 Part 1 » Leave a Reply Cancel reply Your email address will not be published. Required fields are marked * Name * Email * Website nine × one = Comment Yes, add me to your mailing list. Subscribe to our Newsletter Enter your email address to subscribe to my blog and receive notifications of new posts by email. Search Categories AngularJS ASP.NET Best-Practices C# Interview-Questions JavaScript Microsoft Certification Exam mini-challenges Protractor Recent Posts: CSS Tooltip, without JavaSc
Ask a Question Need help? Post your question and get tips & solutions from a community of 418,579 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"