使用纯Javascript切换HTML5视频静音

我正在尝试使用自定义按钮在不同的视频上切换静音/取消静音，而不使用jQuery。这是我的密码：

const videoContainerCollection = document.getElementsByClassName('video-container'),
videoContainerArray = [...videoContainerCollection];
videoContainerArray.forEach(function(e) {
  const video = e.querySelector('video'),
  button = e.querySelector('button');
  video.muted = true;
  button.addEventListener('click', function() {
    button.classList.toggle('muted');
    if (video.muted = true) {
      video.muted = false;
    }
    else if (video.muted = false) {
      video.muted = true;
    }
  });
});

---

我可以取消每个视频的静音，但无法再次将其静音。我做错了什么？

检查if条件，你应该比较，你分配。啊哈！谢谢！：）

const videoContainerCollection = document.getElementsByClassName('video-container'),
videoContainerArray = [...videoContainerCollection];
videoContainerArray.forEach(function(e) {
  const video = e.querySelector('video'),
  button = e.querySelector('button');
  video.muted = true;
  button.addEventListener('click', function() {
    button.classList.toggle('muted');
    if (video.muted === true) {
      video.muted = false;
    }
    else if (video.muted === false) {
      video.muted = true;
    }
  });
});