CODEWITHSUNDEEP
javascriptnode.js
Rohit
Rohit

Reputation: 1533

Can we print/store the value of console.time() - console.timeEnd()?

I was wondering if we could get the value that a console.time() prints and store it in a variable or write to a log file or something. Basically, can we have the execution time for purposes other than printing on the console?

Upvotes: 3

Views: 3056

Answers (2)

trincot
trincot

Reputation: 350202

For measuring execution times, there is the performance object. In its most simple use you would do start = performance.now().

But there are more features for measuring intervals, like performance.mark(name) which creates a timestamp in the browser's performance entry buffer with the given name, and then measure(name, fromname, toname) which measures the delay between two marks and stores the result with a new name, ...etc.

In nodejs there is process.hrtime.bigint(), which returns a bigint representing nanoseconds. For older nodejs versions you can use process.hrtime([time]) which returns two integers in an array: [seconds, nanoseconds].

The performance-now npm module is based on the latter and mimics the performance.now() behaviour.

Upvotes: 4

Icehorn
Icehorn

Reputation: 1337

You can use Date.now() in order to retrieve the current time.

> Date.now()
>> 1552371509583

https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date/now

Upvotes: 1

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