Run results for: Split string -vs- string array access

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.14; rv:86.0) Gecko/20100101 Firefox/86.0

Browser: Firefox 86

Operating system: Mac OS X 10.14

Device Platform: Desktop

Date tested: 3 years ago

Test name	Executions per second
Split string	702436544.0 Ops/sec
String array access	627086080.0 Ops/sec

Script Preparation code:

var base64Alphabet = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/';
var base64Char = base64Alphabet.split('');

Tests:

Split string
var a = base64Char[0]; var b = base64Char[3]; var c = base64Char[10];
String array access
var a = base64Alphabet[0]; var b = base64Alphabet[3]; var c = base64Alphabet[10];