javascript - Custom console.log function that tells you the line that it was invoked -


यहाँ एक सरल console.log फ़ंक्शन है जो कंसोल की सामग्री को आउटपुट करता है: 

  फ़ंक्शन यू (X) {console.log (x); } // पंक्ति 41

लेकिन यह डिबगिंग प्रयोजनों के लिए पूरी तरह से कुशल नहीं है, क्योंकि ब्राउज़र हमेशा उस पंक्ति को आउटपुट करेगा जो console.log () पर लागू किया गया था, जो इस में पंक्ति 41 है मामला।

त्रुटि या जो भी हो, 741 लाइन पर हो सकता है, लेकिन इससे कोई फर्क नहीं पड़ता। मुझे पता है कि मैं बस कम कस्टम फ़ंक्शन को बनाने के बजाय कंसोल। लॉग का उपयोग कर सकता हूं, लेकिन अगर मेरे पास नहीं है, तो ...

कैसे आप (एक्स) वास्तविक प्रदर्शित कर सकते हैं लाइन जिस पर इसे लागू किया गया था?

चीयर्स!

फ़ंक्शन में लाइन नंबर भेजने के लिए बहुत सरल है। मुझे यकीन नहीं है कि बड़े समाधान के बिना ट्रेस करना इतना आसान है

<पूर्व> फ़ंक्शन u (x, l) {console.log (x + 'on line' + l); } यू ('टेस्ट', नई त्रुटि ()। लाइननंबर)

संपादित करें: हालांकि, मैंने एफएफ और ओपेरा में यह केवल काम किया है। यहां एक क्रॉस-ब्राउज़र समाधान है


Comments

Post a Comment

Popular posts from this blog

c# - Reactive Extensions ControlScheduler -

Well, I'm using Reactive Extension Event Handler to handle my app events, I run the headlines on the Yuri thread. I also use ControlSubular for However, recently I am getting cross thread exception despite using control scheduler and I do not know what the problem is. Code: Observable.FromEventPattern & Lt; String & gt; (CC, "UiAlertMessage", New Control Session ()) Subscribe (_ = & gt; {Alert Control. (Show this language, title, _.EventArgs.UppercaseFirst ());}); The new control scheduler (this) is not to run the code on the UI control thread, so I do not get cross threading exceptions? you should do Observable.FromEventPattern & lt; String & gt; (CC, "UiAlertMessage"). AboveOption (this). Subscribe (_ = & gt; {Alert Control. (Show this language, Titles, _.EventArgs.UppercaseFirst ());}); This is the standard way of sending a scheduler related to specific controls. Passing control scheduler as you have got subsc...
Read more

scala - Play Framework - how to bind form to a session field -

Is there any way, I can get some parameters from the header, cookies (log in userId in my case) , And then apply it in a form which I know who will deposit the ticket? SupportForm supportForm: form [supportTicket] = form (mapping ("question" -> text, "priority" -> text) (apply support ticket. (HelpText.update) What are the good practices here? What is the call to apply the request, when I can use it (and also a good practice?) Edit An issue, absolutely deceiving anyone if I were to create a hidden area with this value. It could Ript, but the issue may be re-used in any way to verify and return the form, it can not be sure how it ....
Read more

c++ - Why does Visual Studio Release build break on non-executing code line -

When I created my C ++ program with the default release configuration in Visual Studio 10, I put a breakpoint on one line Who should never be reached. What confunded me was that when the program is running then it stopped at the breaking point. Adding a volatile statement and transferring this line to the break point does not break the execution of the code where the brake appears (though does not produce the same behavior as creating a minimum project with this function). Why is the "Release Debugger" (?) Step on this line and when executing breakpoints are executed? If I keep going after the break then false statement continues to return code execution. bool bounding box :: Cutting (int32_t xpos, int32_t ypos, int32_t dx, int32_t dy) const {int32_t intersectionX; Int32_t intersections; If ((dx> 0 & amp; amp; and & amp; xpos> rights) || (dx gt; Top) || (D & LT; 0 & amp; AOPO & Lt; BOT)) Return; If (DX! = 0) {intersection Y = ypos + (left...
Read more