Today I Learned

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Timing Processes

If you want to time a process, you can use the console.time() and console.timeEnd() utilities specified by the console Web API. Invoking console.time() with a label starts a named timer. You can then run the process you want to time. Then invoke console.timeEnd() with the same label to terminate the timer and see how long the process took.

> sorting: 0.278ms

console.time('console logging');
console.log('logging to the console');
console.timeEnd('console logging');
> logging to the console
> console logging: 0.311ms

console.time('adding'); 1 + 1; console.timeEnd('adding');
> adding: 0.006ms

These functions are implemented in most modern browsers.

See the docs for more details.