console.timeLog()

The console.timeLog() method 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.

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:

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

Browser compatibility