jsbm

A CLI tool to benchmark javascript files

example

main.js

let arr_1 = new Array(256);
let arr_2 = new Array(256);

// @jsbm { concat }
arr_1.concat(arr_2);

// @jsbm { spread }
[...arr_1, ...arr_2];

usage

$ jsbm -i 1000 main.js
concat | 485μs (std. 6μs o. 39%)
spread | 1.42ms (std. 12μs o. 10%)

jsbm [options] [paths]...

options:

-i, --iterations Measure snippets over x iterations (defaults to 1)

-s, --samples Repeat x measurements (defaults to 1000)

--keep Keep generated files

cargo install --git https://github.com/9elt/jsbm