Debounce

debounce.js

((app)=>{
  var elapse = 0,
      intv;
  
  app.props.onEvent = app.debounce(app.run, app.props.DEBOUNCE_DEFER);
  
  intv  = setInterval(()=>{          
    app.props.onEvent({
      app: app
    });
    
    if (elapse >= app.props.MAX_TIME) {
      console.log("done.")
      clearInterval(intv);
      
      return true;
    } else {
      console.log(elapse);
    }
    
    elapse += app.props.EVENT_INTV;
  }, app.props.EVENT_INTV);
})({  
  props:{
    DEBOUNCE_DEFER: 2000,
    EVENT_INTV: 500,
    MAX_TIME: 4000,
    onEvent: null,    
    timeout: null,
  },
  run: ()=>{
    console.log("my debounced function.");
  },
  debounce: (func, defer)=>{
    return (event)=>{            
      clearTimeout(event.app.props.timeout);
      event.app.props.timeout = setTimeout(()=>{
        func();
      }, defer);
    };
  }
});