Run results for: a[n] | n in a | a.length-1==n | a.at(-1)==a[n] - MeasureThat.net

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/107.0.0.0 Safari/537.36

Browser: Chrome 107

Operating system: Windows

Device Platform: Desktop

Date tested: 2 years ago

Test name	Executions per second
a[n]	416624896.0 Ops/sec
n in a	418515040.0 Ops/sec
a.length-1==n	420008192.0 Ops/sec
a.at(-1)==a[n]	47300388.0 Ops/sec

Tests:

a[n]
let a=[4,8,15,16,23,42],n=5; (a[n])&&(a.li=a[n])
n in a
let a=[4,8,15,16,23,42],n=5; (n in a)&&(a.li=a[n])
a.length-1==n
let a=[4,8,15,16,23,42],n=5; (a.length-1==n)&&(a.li=a[n])
a.at(-1)==a[n]
let a=[4,8,15,16,23,42],n=5; (a.at(-1)==a[n])&&(a.li=a[n])