Run results for: access to first item of array via shift, index ([0]), slice

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_14_5) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/73.0.3683.103 Safari/537.36 OPR/60.0.3255.170

Browser: Opera 60

Operating system: Mac OS X 10.14.5

Device Platform: Desktop

Date tested: 5 years ago

Test name	Executions per second
shift	4938384.5 Ops/sec
by index	5829637.5 Ops/sec
slice	16401447.0 Ops/sec

Script Preparation code:

var name = 'some somewhat long name'

Tests:

shift
name.split(' ').shift()
by index
name.split(' ')[0]
slice
name.split(' ').slice(0, 1)[0]

Run results for: access to first item of array via shift, index ([0]), slice

shift

by index

slice