我必须在每个滚动上增加计数1。

let scrollCount = 0;
//initially it would be 0 and after  every scroll up it should increase 1,
scrollCount++;


在react-native的每个滚动中递增计数1的功能是什么。

//下面的js代码我知道..但是对于react-native感到困惑。

var scrollCount = 0;
           window.addEventListener('mousewheel', function(e){

            if(e.wheelDelta<=0 && scrollCount<5){
            scrollCount++;
            }

          else if(e.wheelDelta>0 && scrollCount>1){
        scrollCount--;
        }
         document.querySelector('.number').innerHTML = scrollCount;
         });

最佳答案

object.onscroll = function(){
  //myScript
};


每次滚动运行您的脚本

或添加事件监听器:

object.addEventListener("scroll", myScript);


它变成这样:

var scrollCount = 0;
//object is your document. or any DOM element you would like to add
object.onscroll = function(){
  scrollCount++;
};

10-07 17:38