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

@:value({ condition : false })assert(condition:Bool = false, data:Rest<Dynamic>):Void

Log a message and stack trace to console if the first argument is false.

clear():Void

Clear the console.

@:value({ label : "default" })count(label:String = "default"):Void

Log the number of times this line has been called with the given label.

@:value({ label : "default" })countReset(label:String = "default"):Void

Resets the value of the counter 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.

exception(data:Rest<Dynamic>):Void

An alias for error().

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().

groupEnd():Void

Exits the current inline group.

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).

table(data:Rest<Dynamic>):Void

Displays tabular data as a table.

@:value({ label : "default" })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.

@:value({ label : "default" })timeEnd(label:String = "default"):Void

Stops the specified timer and logs the elapsed time in seconds since it started.

@:value({ label : "default" })timeLog(label:String = "default", data:Rest<Dynamic>):Void

Logs the value of the specified timer to the console.

timeStamp(?data:Dynamic):Void

Adds a marker to the browser's Timeline or Waterfall tool.

trace(data:Rest<Dynamic>):Void

Outputs a stack trace.

warn(data:Rest<Dynamic>):Void

Outputs a warning message. You may use string substitution and additional arguments with this method.