On Fri, 24 Aug 2018 at 04:56, J Decker <d3c...@gmail.com> wrote: > On Thu, Aug 23, 2018 at 5:26 PM Aaron Gray <aaronngray.li...@gmail.com> > wrote: > >> I am debugging existing code that I have modularized, and am class'izing >> that has unittests and it just would have been very useful to have this >> facility. >> > In a browser, console.log is usually associated with the file and line > number anyway; which includes using devtools with node.... but it would be > handy for logging. with V8 there is console.trace; which spits out the > stack trace too... before I discovered that I did a logging function > like... > > (from > https://stackoverflow.com/questions/591857/how-can-i-get-a-javascript-stack-trace-when-i-throw-an-exception > ) > function stackTrace() { var err = new Error(); return err.stack; } // > parse stack to get frame-1 online > > // or maybe just frame-1... > function stackTrace() { var err = new Error(); return err.stack.split( > "\n" )[1]; } > > --- > function stacktrace() { > function st2(f) { > return !f ? [] : > st2(f.caller).concat([f.toString().split('(')[0].substring(9) + > '(' + f.arguments.join(',') + ')']); > } > return st2(arguments.callee.caller); > } > > EDIT 2 (2017) : > > In all modern browsers you can simply call: console.trace(); (MDN > Reference) >
Yes slightly long winded to say the least :) > --- > > Although I do still miss just being able to get __FILE__ and __LINE__ > Yeah it should be easy to have such stuff compiled by JIT Aaron > -Gus >>> >>> ---- On Thu, 23 Aug 2018 17:56:43 -0500 *Aaron Gray >>> <aaronngray.li...@gmail.com <aaronngray.li...@gmail.com>>* wrote ---- >>> >>> I wondering what people think about the idea of proposing being able to >>> get the line number and filename of executing code in the code ? Maybe with >>> something simular to C preprocessors __line_number__ and __filename__. Or >>> as subobjects of global ? >>> >>> -- >>> Aaron Gray >>> >>> Independent Open Source Software Engineer, Computer Language Researcher, >>> Information Theorist, and amateur computer scientist. >>> _______________________________________________ >>> es-discuss mailing list >>> es-discuss@mozilla.org >>> https://mail.mozilla.org/listinfo/es-discuss >>> >>> >>> >>> >> >> -- >> Aaron Gray >> >> Independent Open Source Software Engineer, Computer Language Researcher, >> Information Theorist, and amateur computer scientist. >> _______________________________________________ >> es-discuss mailing list >> es-discuss@mozilla.org >> https://mail.mozilla.org/listinfo/es-discuss >> > -- Aaron Gray Independent Open Source Software Engineer, Computer Language Researcher, Information Theorist, and amateur computer scientist.
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