jquery click around div to hide div

In web development, it is often necessary to implement the function of hiding another element when clicking on an element. This is especially common when implementing some interactive effects. This article will introduce how to use jQuery to implement the function of hiding a div when clicking around it.

Use jQuery to handle events

In order to realize the function of hiding the div when clicking around the div, we need to use jQuery's event processing function. In jQuery, event binding can use the .on() method. For example, the code to bind a click event is as follows:

$(document).on('click', function() {
  // 隐藏div的代码
});

This code will bind the click event to the entire document. When the This event is triggered when any element is clicked.

Determine the target div

Next, we need to determine the div to be hidden. This article will assume that the id of this div is "target", and we can get it using jQuery's selector. For example, the code to get this div is as follows:

var targetDiv = $('#target');

Handling click events

When a click event occurs, we need to check whether the clicked element is around the target div. If so, nothing will be executed. Action, if not, hides the target div. In order to determine whether the clicked element is around the target div, we need to use the properties provided by jQuery's event object, including page coordinates, element coordinates, and element size.

Get the click position

First, we need to get the click position. jQuery's event object provides page coordinates and element coordinates. We can use the pageX and pageY properties to obtain page coordinates, and use the offset() method to obtain element coordinates. For example, the code to get the mouse click position is as follows:

$(document).on('click', function(e) {
  var mouseX = e.pageX;
  var mouseY = e.pageY;
});

Get the position and size of the target div

Next, we need to get the position and size of the target div. We can use the offset(), outerWidth(), and outerHeight() methods to obtain the position and size of the target div. For example, the code to obtain the target div is as follows:

var targetDiv = $('#target');
var targetX = targetDiv.offset().left;
var targetY = targetDiv.offset().top;
var targetWidth = targetDiv.outerWidth();
var targetHeight = targetDiv.outerHeight();

Determine whether the click is around the target div

With the click position and the position and size of the target div, we can determine whether the click is around the target div . The method of judgment is that if the abscissa of the mouse click position is to the left or right of the target div, or the ordinate is above or below the target div, the click is considered to be around the target div. For example, the code to determine whether the click is around the target div is as follows:

if (mouseX < targetX || mouseX > targetX + targetWidth || mouseY < targetY || mouseY > targetY + targetHeight) {
  // 点击在目标div周围，需要隐藏目标div
} else {
  // 点击在目标div内部或边缘，不需要隐藏目标div
}

Hide the target div

Finally, if the click is not around the target div, we need to hide the target div. Hiding elements can be achieved using the .hide() method. For example, the code to hide the target div is as follows:

targetDiv.hide();

Complete code

Finally, we integrate all the above codes together and get the complete code as follows:

$(document).on('click', function(e) {
  var targetDiv = $('#target');
  var targetX = targetDiv.offset().left;
  var targetY = targetDiv.offset().top;
  var targetWidth = targetDiv.outerWidth();
  var targetHeight = targetDiv.outerHeight();
  var mouseX = e.pageX;
  var mouseY = e.pageY;
  
  if (mouseX < targetX || mouseX > targetX + targetWidth || mouseY < targetY || mouseY > targetY + targetHeight) {
    targetDiv.hide();
  }
});

Click the div This can be achieved by hiding the div around it.

Summary

This article introduces the method of using jQuery to hide divs when clicking around divs. The key to achieving this function is to use jQuery event handling and DOM manipulation methods, and to use jQuery's selectors and attributes to obtain the position and size of the target div. This method can be extended to other elements, such as buttons, pop-up windows, etc., providing good interactive effects for web development.

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