如何向动态填充的div添加onClick函数?

问题描述 投票:0回答:1

我有带有下拉菜单的引导导航栏:

<ul class="navbar-nav mr-auto">
  <li class="nav-item dropdown">
   <a class="nav-link dropdown-toggle" data-toggle="dropdown" href="#" role="button" aria haspopup="true" aria-expanded="false">GANRES</a>
   <div class="dropdown-menu"></div>
  </li>
</ul>

而且我有使用TMDb API填充类型的函数:

async function getGenres() {
    let url = "https://api.themoviedb.org/3/genre/movie/list?api_key=d80a54a0422d5fff6149c48741c8bece&language=en-US";
    let response = await fetch(url);
    let genres = await response.json();
    let navbar = document.getElementsByClassName("nav-item dropdown");
    navbar.innerHTML += `<div class="dropdown-menu">`;
    let nav = document.getElementsByClassName("dropdown-menu");
    for (let i = 0; i < genres.genres.length; i++) {
        nav[0].innerHTML += `<a class="dropdown-item" href="#">` + genres.genres[i].name + `</a>`;
    }

//This part should add separately to each element, but it does not work
//Here is error: Cannot set property 'click' of undefined at getGenres

    for (let i = 0; i < genres.genres.length; i++) {
    document.getElementsByClassName("dropdown-menu")[i].click = function () {
        getmovies("discover/movie?api_key=d80a54a0422d5fff6149c48741c8bece&language=en-us&sort_by=popularity.desc&include_adult=false&include_video=false&page=1&with_genres=" + genres.genres[i].id);
    };
};
} 

项目本身是正常创建的。Genres onClick函数无法使用。

我试图将此函数作为onload加载到正文中,但是没有用

javascript api
1个回答
0
投票

您可以轻松做到,这是嘲笑的例子:

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