Console.timeLog()

Logs the current value of a timer that was previously started by calling console.time() to the console.

See Timers in the documentation for details and examples.

Note: This feature is available in Web Workers.

Syntax

console.timeLog(label);

Parameters

label
The name of the timer to log to the console.

Return

If no label parameter included:

default: 1042ms

If an existing label is included:

timer name: 1242ms

Exceptions

If there is no running timer, timeLog() returns the warning:

Timer “default” doesn’t exist.

If a label parameter is included, but there is no corresponding timer:

 Timer “timer name” doesn’t exist. 

Examples

console.time("answer time");
alert("Click to continue");
console.timeLog("answer time");
alert("Do a bunch of other stuff...");
console.timeEnd("answer time");

The output from the example above shows the time taken by the user to dismiss the first alert box, followed by the time it took for the user to dismiss the second alert:

timerresult.png

Notice that the timer's name is displayed when the timer value is logged using timeLog() and again when it's stopped. In addition, the call to timeEnd() has the additional information, "timer ended" to make it obvious that the timer is no longer tracking time.

Specifications

Specification Status Comment
Console API
The definition of 'console.timeLog()' in that specification.
Living Standard Initial definition

Browser compatibility

DesktopMobile
ChromeEdgeFirefoxInternet ExplorerOperaSafariAndroid webviewChrome for AndroidFirefox for AndroidOpera for AndroidSafari on iOSSamsung Internet
timeLogChrome Full support 72Edge Full support 79Firefox Full support 62IE No support NoOpera Full support 60Safari No support No
Notes
No support No
Notes
Notes See bug 186833.
WebView Android Full support 72Chrome Android Full support 72Firefox Android Full support 62Opera Android ? Safari iOS No support NoSamsung Internet Android Full support 11.0

Legend

Full support
Full support
No support
No support
Compatibility unknown
Compatibility unknown
See implementation notes.
See implementation notes.

See also