How Can I Use jQuery to Show and Hide Divs at Specific Time Intervals?

Display and Conceal Divs at Predefined Time Intervals Using jQuery

In web development, it's a common practice to dynamically show or hide elements at specific time intervals. jQuery, a powerful JavaScript library, provides an array of methods including setInterval that facilitate such tasks.

The Question

To showcase how to implement this functionality, let's consider a scenario where we need to unveil a series of divs sequentially, with a 10-second interval between them.

The Solution

An ideal approach to achieving this is by utilizing the JavaScript setInterval function. We'll initiate a counter to keep track of the displayed div and implement the following logic:

• Set up a timer that executes the showDiv function every 10 seconds.
• Within the showDiv function, check the counter value to ensure it's not on the initial execution.
• If the counter is not on its first iteration, conceal all divs and reveal the one corresponding to the current counter.
• Increment the counter, and if it reaches the last div, reset it to zero.

By adopting this method, we can show each div at 10-second intervals, as shown in the working example linked below.

Working Example here - add /edit to the URL to play with the code

The provided code snippet leverages the setInterval function to periodically trigger the display of divs. Here's a breakdown of the code:

setInterval(showDiv, 10000); // Set a 10-second interval to execute showDiv

var counter = 0; // Initialize a counter to track the displayed div

function showDiv() {
  if (counter == 0) { // Skip the first iteration
    counter++;
    return;
  }

  $('div', '#container') // Select all divs within the container element
    .stop() // Halt any ongoing animations
    .hide() // Conceal all divs
    .filter(function() { // Filter and show the div corresponding to the current counter
      return this.id.match('div' + counter);
    })
    .show('fast');
  counter == 3 ? counter = 0 : counter++; // Increment the counter and reset it if necessary
}

Remember, the key to implementing this functionality effectively lies in understanding the role of the setInterval function and the accompanying logic to show and hide divs at predefined intervals. Feel free to explore the provided working example to further enhance your understanding of this technique.

The above is the detailed content of How Can I Use jQuery to Show and Hide Divs at Specific Time Intervals?. For more information, please follow other related articles on the PHP Chinese website!