src/components/sound.js
function (oldEvt) {
    var el = this.el;
    if (oldEvt) { el.removeEventListener(oldEvt, this.playSoundBound); }
    el.addEventListener(this.data.on, this.playSoundBound);
  }
function (oldEvt) {
    var el = this.el;
    if (oldEvt) { el.removeEventListener(oldEvt, this.playSoundBound); }
    el.addEventListener(this.data.on, this.playSoundBound);
  }
function ( oldEvt ) { var el = this . el ; if ( oldEvt ) { el . removeEventListener ( oldEvt , this . playSoundBound ) ; } el . addEventListener ( this . data . on , this . playSoundBound ) ; }
Update listener attached to the user defined on event.
Update listener attached to the user defined on event .