# Global.Console > Console logging facilities. - Source: https://titaniumsdk.com/docs/sdk/12.7.1/Global.Console - Titanium SDK version: 12.7.1 - Kind: module - Platforms: Android, iPhone, iPad, macOS - Since: Titanium SDK 2.1.0 The toplevel `console` support is intended to supplement [Titanium.API](https://titaniumsdk.com/docs/sdk/Titanium.API.md) and make it easier for developers to port existing javascript code (especially CommonJS modules) to Titanium. Note that `console` does not currently implement the complete [Console](https://developer.mozilla.org/de/docs/Web/API/Console) specification. See the following supported methods for details and submit a pull request to add more! ## Methods ### assert - Platforms: Android, iPhone, iPad, macOS - Since: Titanium SDK 9.1.0 A simple assertion test that verifies whether value is truthy. If it is not, Assertion failed is logged. If provided, the error message is formatted using `util.format()` by passing along all message arguments. The output is used as the error message. Parameters: - `value` (any, optional): The value tested for being truthy. Default: `default`. - `message` (any, optional, repeatable): All arguments besides value are used as error message. ### count - Platforms: Android, iPhone, iPad, macOS - Since: Titanium SDK 9.1.0 Maintains an internal counter specific to `label` and outputs to stdout the number of times `console.count()` has been called with the given `label`. Parameters: - `label` (String, optional): The display label for the counter Default: `default`. ### countReset - Platforms: Android, iPhone, iPad, macOS - Since: Titanium SDK 9.1.0 Resets the internal counter specific to `label`. Parameters: - `label` (String, optional): The display label for the counter Default: `default`. ### debug - Platforms: Android, iPhone, iPad, macOS Log a message at the `debug` level. The message to log can either be a single argument, or any number of arguments, which will be converted to strings and then concatenated together with a space character. Parameters: - `message` (any, repeatable): The message(s) to log. ### error - Platforms: Android, iPhone, iPad, macOS Log a message at the `error` level. The message to log can either be a single argument, or any number of arguments, which will be converted to strings and then concatenated together with a space character. Parameters: - `message` (any, repeatable): The message(s) to log. ### group - Platforms: Android, iPhone, iPad, macOS - Since: Titanium SDK 9.1.0 Increases indentation of subsequent lines by spaces for `groupIndentation` length. Parameters: - `label` (any, optional, repeatable): Labels to print before indentation (if provided) ### groupCollapsed - Platforms: Android, iPhone, iPad, macOS - Since: Titanium SDK 9.1.0 Alias for `group()` Parameters: - `label` (any, optional, repeatable): Labels to print before indentation (if provided) ### groupEnd - Platforms: Android, iPhone, iPad, macOS - Since: Titanium SDK 9.1.0 Decreases indentation of subsequent lines by spaces for `groupIndentation` length. ### info - Platforms: Android, iPhone, iPad, macOS Log a message at the `info` level. The message to log can either be a single argument, or any number of arguments, which will be converted to strings and then concatenated together with a space character. Parameters: - `message` (any, repeatable): The message(s) to log. ### log - Platforms: Android, iPhone, iPad, macOS Log a message at the `info` level. The message to log can either be a single argument, or any number of arguments, which will be converted to strings and then concatenated together with a space character. Note that this method has different behavior from [Titanium.API.log](https://titaniumsdk.com/docs/sdk/Titanium.API.md#log), which can take multiple arguments, but in doing so interprets the first argument as a custom log level. Parameters: - `message` (any, repeatable): The message(s) to log. ### time - Platforms: Android, iPhone, iPad, macOS - Since: Titanium SDK 7.3.0 Start a timer to track duration of an operation. Begin a timer that can be used to track the duration of an operation. If no label is passed to the function it will default to "default". If a label already exists then the existing label will not be overwritten and a warning will be logged to the console. Parameters: - `label` (String, optional): The label to track the timer by Default: `default`. ### timeEnd - Platforms: Android, iPhone, iPad, macOS - Since: Titanium SDK 7.3.0 Stop a timer that was previously started. Stop a timer that was started by calling [console.time](https://titaniumsdk.com/docs/sdk/Global.Console.md#time), and output the time since the timer was begun to the console in milliseconds. If no timer exists a warning will be logged to the console. Parameters: - `label` (String, optional): The label to track the timer by Default: `default`. ### timeLog - Platforms: Android, iPhone, iPad, macOS - Since: Titanium SDK 7.5.0 Log duration taken so far for an operation. Output the time since a timer was started by calling [console.time](https://titaniumsdk.com/docs/sdk/Global.Console.md#time) to the console, as well as any other `data` arguments provided. To log extra data a label must be provided. If no timer exists a warning will be logged to the console. Parameters: - `label` (String, optional): The label to track the timer by Default: `default`. - `data` (any, optional, repeatable): Extra log data to be provided when logging, can be a single argument or any number of arguments. ### trace - Platforms: Android, iPhone, iPad, macOS - Since: Titanium SDK 9.1.0 Log a message at the `trace` level. The message to log can either be a single argument, or any number of arguments, which will be converted to strings and then concatenated together with a space character. Parameters: - `message` (any, repeatable): The message(s) to log. ### warn - Platforms: Android, iPhone, iPad, macOS Log a message at the `warn` level. The message to log can either be a single argument, or any number of arguments, which will be converted to strings and then concatenated together with a space character. Parameters: - `message` (any, repeatable): The message(s) to log. --- - This corpus documents Titanium SDK 13.4.1. Anything here that does not name a version describes 13.4.1. - Titanium is maintained by TiDev. The Appcelerator toolchain is retired: there is no `appc` CLI, no Appcelerator Studio and no hosted build service. The supported CLI is `titanium` on npm, invoked as `ti`.