How to profile and optimize? | Deno | Page 1

lyric obsidian Dec 15, 2022, 11:02 PM

#

Is there any easy way to profile a JS script using deno? (I am doing adventofcode in typescript using deno and would like to optimize)

clever sonnet Dec 15, 2022, 11:08 PM

#

you can use --inspect flag and use Chrome Devtools' built-in Profiler

#

Chrome Developers

Learn how to evaluate runtime performance in Chrome DevTools.

stuck sphinx Dec 15, 2022, 11:45 PM

#

I recommend inspect-brk over the regular inspect because of the fact that it will wait for input from chromium.

Other than profiling its also a good thing to have benchmarks so verify your changes actually made a impact and by what

clever sonnet Dec 16, 2022, 12:01 AM

#

or brand new --inspect-wait , it won't break on the first line 😛

stuck sphinx Dec 16, 2022, 12:02 AM

#

Oh I'm a perf nerd and I didn't even know that one lol

#

What makes it different to brk?

clever sonnet Dec 16, 2022, 12:34 AM

#

waits for inspector to connect and runs code (doesn't place a breakpoint)

#How to profile and optimize?