Plan and done for June-08-2017

Источник

What will I learn today?

  1. Dive into JS.

Done

  1. What is this all about - http://al1s.github.io/posts/plan-and-done-for-may-25-2017/.

    Day 11 - Custom video player. Here is MDN manual on media element control - https://developer.mozilla.org/en/docs/Web/API/HTMLMediaElement. And here is a walkthrough on building custom player - https://developer.mozilla.org/en-US/Apps/Fundamentals/Audio_and_video_delivery/cross_browser_video_player.

    Done. What were interesting:

    • to set progress bar to position relative to movie position I used setInterval with percentage number rounded with custom round function which supports arbitrary precision.
    • to make progress bar controllable (it's a simple colored div with flexible width with another div as a wrapper) I had to find position of the mouse relative to element. Here is example - https://stackoverflow.com/a/10109204 - how to get it.

    Used JS elements:

    • querySelector;
    • addEventListener, removeEventListener;
    • setInterval, clearInterval;
    • mediaElement.play, mediaElement.pause, mediaElement.currentTime, mediaElement.duration, mediaElement.volume, mediaElement.playbackRate.