结合两个函数 Pure JS

Question

如何将这两个功能合而为一？ 现在我有两个功能做同样的事情：关闭网站上的搜索 window - 通过按 escape 和按某个外部。

    searchOverlay.addEventListener('keydown', function(event){
        if(event.key === "Escape"){
            body.classList.remove('search-opened');
            event.stopPropagation();
        }
    });

    searchOverlay.addEventListener('click', function (e) {
        if (e.target.closest('.search-inner') === null) {
            body.classList.remove('search-opened');
            e.stopPropagation();
        }
    });
}

Answer 1

您甚至可以简单地创建一个支持这两种情况的事件监听器

function removeSearchOpenedClass(event) {
  if (event.key === "Escape" || !event.target.closest(".search-inner")) {
    body.classList.remove('search-opened');
    event.stopPropagation(); 
  }
}
searchOverlay.addEventListener('keydown', removeSearchOpenedClass)
searchOverlay.addEventListener('click', removeSearchOpenedClass)

Answer 2

您可以声明一个 function 并在两个回调中调用它。

function doStuff(e){
    body.classList.remove('search-opened');
    e.stopPropagation();
}

searchOverlay.addEventListener('keydown', function(event){
    if(event.key === "Escape"){
        doStuff(event)
    }
});

searchOverlay.addEventListener('click', function (e) {
    if (e.target.closest('.search-inner') === null) {
        doStuff(e)
    }
});