Run results for: Digit extraction

Run details:

User agent: Mozilla/5.0 (Mobile; LYF/LF-2403N/LYF-LF2403N-001-02-08-300518-i;Android; rv:48.0) Gecko/48.0 Firefox/48.0 KAIOS/2.5

Browser: Firefox Mobile 48

Operating system: Firefox OS

Device Platform: Mobile

Date tested: 4 years ago

Test name	Executions per second
Match	18349.3 Ops/sec
Replace	15331.1 Ops/sec

Script Preparation code:

function makeid() {
   var result           = '';
   var characters       = 'abcdefghijklmnopqrstuvwxyz0123456789';
   var charactersLength = characters.length;
   for ( var i = 0; i < 30; i++ ) {
      result += characters.charAt(Math.floor(Math.random() * charactersLength));
   }
   return result;
}

var result = '';

Tests:

Match
const digits = makeid().match(/\d+/g); result += digits != null ? digits.join('') : '';
Replace
result += makeid().replace(/\D/g,'');

Run results for: Digit extraction

Match

Replace