Find the largest number in an Array - one line

#javascript #polacode #codeisbeautiful

Drozerah

Jun 18, 2019 ・1 min read

Spread that out !

Discussion (4)

Jeremy Forsythe • Jun 19 '19

jsbench.me/g4jx2nffbo/1

Array.prototype.reduce() seems to be much faster.

array.reduce((acc, val) => val > acc ? val : acc);

Drozerah • Jun 19 '19 • Edited

console.time('first')
    Math.max(...array)
console.timeEnd('first') // first: 0.179ms

console.time('second')
    array.reduce((acc, val) => val > acc ? val : acc)
console.timeEnd('second') // second: 0.054ms

Definitively slower to execute but half the time to write it :)

George • Jun 19 '19

Depends what the codes for really.

Math.max() is easier to read, and if only run occasionally on small arrays... fine.

Reduce is a little more convoluted, but still can be understood easily enough. The time savings on the code if running frequently or on larger datasets can quickly add up in benefits.