Run results for: replace speed

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_14_5) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/79.0.3945.79 Safari/537.36

Browser: Chrome 79

Operating system: Mac OS X 10.14.5

Device Platform: Desktop

Date tested: 4 years ago

Test name	Executions per second
map	192317.7 Ops/sec
regular	164436.0 Ops/sec

Tests:

map
str = "102.7 KIIS FM" str = str .split(' ') .map(function(value){ if(value.toLowerCase() == "fm" || value.toLowerCase() == "am") return value return value.replace( /(\b.)|(.)/g, ($0, $1, $2) => { return ($1 && $1.toUpperCase()) || $2.toLowerCase(); } ); }) .join(' ');
regular
str = "102.7 KIIS FM" str = str .split(' ') .join(' ') .replace( /(\b.)|(.)/g, ($0, $1, $2) => { return ($1 && $1.toUpperCase()) || $2.toLowerCase(); } );