Difference between revisions of "GM log"

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:Value: Function
:Value: Function
:Returns: Nothing
:Returns: undefined
:Compatibility: [[Version_history#0.3_beta|Greasemonkey 0.3b+]]
:Compatibility: [[Version_history#0.3_beta|Greasemonkey 0.3b+]]



Revision as of 17:49, 20 February 2009

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API

Description

This API method allows script authors simple access to logging informational messages in the Error Console.

If you aren't seeing your messages, make sure you navigate to about:config, and change the values of javascript.options.showInConsole and javascript.options.strict to true. This can be helpful for debugging.

Examples | GM_log and Firebug | Notes

Syntax

GM_log( message )

Value: Function
Returns: undefined
Compatibility: Greasemonkey 0.3b+
Parameters
Properties
message
  • All properties are optional except message.

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Properties


message

Value: String, Integer[1] or Boolean[1]
Usage: message = "ARGHHH!";
  • Message to send to the JavaScript error console.
  • [1] While the value may be a non-string, it will convert the argument to a string. There may also be some instances of visual clipping on large numerical values during conversion. This is a feature present in Mozilla based JavaScript console logging.

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Examples

GM_log("Hello, World!");
GM_log("Warning, " + someInputField.value + "!");

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GM_log and Firebug

Since Firebug 1.0, extensions.firebug.showChromeMessages must be set to true for GM_log messages to show up in the Firebug console.

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Notes

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