admin管理员组

文章数量:1277900

NB: I've had a look here for how to change the images on a timer, as oppose to using buttons, but it didn't cater to my code style.

As I'm new to HTML and JS I still don't understand all the aspects and got a little confused on which part they were referring to in translation to how I wrote my code.

CODE:

<!DOCTYPE html>
<html>
  <body>
    <img id="image" src="blank_light.jpg" style="width:100px">
    <p></p>
    <button class="change-image">Change Lights</button>
    <script>
      var imageSources = ["red_light.jpg", "red_and_yellow_light.jpg", "yellow_light.jpg", "green_light.jpg"]
      var buttons = document.getElementsByClassName("change-image")[0];
      var index = 0;

      buttons.addEventListener('click', function() {
        if (index === imageSources.length) {
          index = 0;
        }
        document.getElementById("image").src = imageSources[index];
        index++;
      });

    </script>
  </body>
</html>

I need to remove the buttons and have the images change on a timed basis instead. Ideally every 2 seconds.

Thanks in advance.

NB: I've had a look here for how to change the images on a timer, as oppose to using buttons, but it didn't cater to my code style.

As I'm new to HTML and JS I still don't understand all the aspects and got a little confused on which part they were referring to in translation to how I wrote my code.

CODE:

<!DOCTYPE html>
<html>
  <body>
    <img id="image" src="blank_light.jpg" style="width:100px">
    <p></p>
    <button class="change-image">Change Lights</button>
    <script>
      var imageSources = ["red_light.jpg", "red_and_yellow_light.jpg", "yellow_light.jpg", "green_light.jpg"]
      var buttons = document.getElementsByClassName("change-image")[0];
      var index = 0;

      buttons.addEventListener('click', function() {
        if (index === imageSources.length) {
          index = 0;
        }
        document.getElementById("image").src = imageSources[index];
        index++;
      });

    </script>
  </body>
</html>

I need to remove the buttons and have the images change on a timed basis instead. Ideally every 2 seconds.

Thanks in advance.

  • javascript
  • html
Share Improve this question edited May 23, 2017 at 11:45 CommunityBot 11 silver badge asked Feb 2, 2017 at 13:32 freddie.bumderfreddie.bumder 151 gold badge1 silver badge9 bronze badges 2
  • It's the same link he posted in the question, it's not the same problem – Mattia Nocerino Commented Feb 2, 2017 at 13:37
  • @ACOMIT001 Like Mattia kindly said, it's a different problem as the link I posted has a different original format as me. There's no point writing a bunch of code if I don't understand what it means. – freddie.bumder Commented Feb 2, 2017 at 13:40
Add a ment  | 

2 Answers 2

Reset to default 8

You need to use setInterval function to change image after every 2 sec

<img id="image" src="blank_light.jpg" style="width:100px">
<p></p>

<script>

var imageSources = ["red_light.jpg", "red_and_yellow_light.jpg", "yellow_light.jpg", "green_light.jpg"]

var index = 0;
setInterval (function(){
  if (index === imageSources.length) {
    index = 0;
  }
  document.getElementById("image").src = imageSources[index];
  index++;
} , 2000);

</script>

CodePen : http://codepen.io/anon/pen/zNWMJK

/CoffeeScript
$(document).ready ->
  imageSources = ["image1.jpg", "image2.png", "image3.png", "image4.png", "image5.png"]
  index = 0
  setInterval ( ->
    if index == imageSources.length
      index = 0
    $('#image-test').attr('src', imageSources[index]);
    index++
    return
  ), 2000

本文标签： How To Automatically Change An HTML Image Using JavaScriptStack Overflow

版权声明：本文标题：How To Automatically Change An HTML Image Using JavaScript - Stack Overflow 内容由网友自发贡献，该文观点仅代表作者本人， 转载请联系作者并注明出处：http://www.betaflare.com/web/1741223608a2361441.html， 本站仅提供信息存储空间服务，不拥有所有权，不承担相关法律责任。如发现本站有涉嫌抄袭侵权/违法违规的内容，一经查实，本站将立刻删除。