The Console object provides access to the browser's debugging console (e.g. the Web Console in Firefox). The specifics of how it works varies from browser to browser, but there is a de facto set of features that are typically provided.
Documentation Console by Mozilla Contributors, licensed under CC-BY-SA 2.5.
See also:
Methods
assert(condition:Bool = false, data:Rest<Dynamic>):Void
Log a message and stack trace to console if the first argument is false.
count(label:String = "default"):Void
Log the number of times this line has been called with the given label.
debug(data:Rest<Dynamic>):Void
Outputs a message to the console with the log level "debug".
Note: Starting with Chromium 58 this method only appears in Chromium browser consoles when level "Verbose" is selected.
dir(data:Rest<Dynamic>):Void
Displays an interactive listing of the properties of a specified JavaScript object. This listing lets you use disclosure triangles to examine the contents of child objects.
dirxml(data:Rest<Dynamic>):Void
Displays an XML/HTML Element representation of the specified object if possible or the JavaScript Object view if it is not possible.
error(data:Rest<Dynamic>):Void
Outputs an error message. You may use string substitution and additional arguments with this method.
group(data:Rest<Dynamic>):Void
Creates a new inline group, indenting all following output by another level. To move back out a level, call groupEnd().
groupCollapsed(data:Rest<Dynamic>):Void
Creates a new inline group, indenting all following output by another level. However, unlike group() this starts with the inline group collapsed requiring the use of a disclosure button to expand it. To move back out a level, call groupEnd().
info(data:Rest<Dynamic>):Void
Informative logging of information. You may use string substitution and additional arguments with this method.
log(data:Rest<Dynamic>):Void
For general output of logging information. You may use string substitution and additional arguments with this method.
profile(data:Rest<Dynamic>):Void
Starts the browser's built-in profiler (for example, the Firefox performance tool). You can specify an optional name for the profile.
profileEnd(data:Rest<Dynamic>):Void
Stops the profiler. You can see the resulting profile in the browser's performance tool (for example, the Firefox performance tool).
time(label:String = "default"):Void
Starts a timer with a name specified as an input parameter. Up to 10,000 simultaneous timers can run on a given page.
timeEnd(label:String = "default"):Void
Stops the specified timer and logs the elapsed time in seconds since it started.