Time a function: Difference between revisions

=={{header|JavaScript}}==

<lang javascript>

function test() {

let n = 0

for(let i = 0; i < 1000000; i++){

n += i

}

}

let start = new Date().valueOf()

test()

let end = new Date().valueOf()

console.log('test() took ' + ((end - start) / 1000) + ' seconds') // test() took 0.001 seconds

</lang>