Javascript 它如何改变触摸事件布尔值?

Javascript 它如何改变触摸事件布尔值?,javascript,addeventlistener,touch-event,Javascript,Addeventlistener,Touch Event,我想检查触摸事件。但它没有按我所希望的那样工作。我的错误在哪里 工作示例如下所示 var boolChange = false; document.addEventListener('touchstart', () => boolChange = false, console.log(boolChange)); //CONSOLE.LOG => false document.addEventListener('touchmove'

我想检查触摸事件。但它没有按我所希望的那样工作。我的错误在哪里

工作示例如下所示

      var boolChange = false;
      document.addEventListener('touchstart', () => boolChange = false, console.log(boolChange));
         //CONSOLE.LOG => false
      document.addEventListener('touchmove', () => boolChange = true, console.log(boolChange));
         //CONSOLE.LOG => false
      document.addEventListener('touchend', e => {
         if (boolChange) {
            alert("Working 1");
         }else {
            alert("Working 2");
         }
      });