MeasureThat.net

Run results for: img src slowness

Creating image tags with/without an src attribute with a data URI.

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Run details:
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_11_2) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/54.0.2840.98 Safari/537.36
Chrome 54
Mac OS X 10.11.2
Other
8 years ago
Test name Executions per second
Creation with src 6052.7 Ops/sec
Creation without src 264909.7 Ops/sec
Clone with src 4786.9 Ops/sec
Clone without src 357631.4 Ops/sec
Script Preparation code:
​x
 
function makeImage( src ) {
  var img = document.createElement( 'img' );
  img.className='nail';
  if ( src ) {
    img.src='data:image/gif;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs=';
  }
  return img;
}
​
withSrc = makeImage( true );
withoutSrc = makeImage( false );
​
Tests:

  • Creation with src

     
    makeImage( true );

  • Creation without src

     
    makeImage( false );

  • Clone with src

     
    withSrc.cloneNode();

  • Clone without src

     
    withoutSrc.cloneNode();