How to clear words in div with JQuery

JQuery is a widely used JavaScript library that can easily manipulate HTML documents, including moving, modifying and deleting elements. There are many situations where we need to clear or remove text within a div in order for the data to be updated and displayed throughout the application. This article will show you how to clear text in a div using JQuery.

1. Clear the text in the div

First, we need to get the div element and use JQuery's text() method to clear its text. The following is a sample code for using JQuery to clear div text:

<div id="myDiv">这是一个div标签。</div>

$(document).ready(function(){
  $("#myDiv").text("");
});

In the above code, we use the ready() method of document to ensure that the JQuery code is executed after the page is loaded. We then get the div element with the ID "myDiv" through the selector and set its text content to an empty string using the text() method.

Run the code at this time and you will see that the text in the div tag is cleared.

2. Delete the text node in the div

Using the text() method to clear the text only sets the text content to an empty string and does not delete the text node. If we want to completely remove the text node, we need to use JQuery's empty() method. The following is a sample code that uses the empty() method to clear div text:

<div id="myDiv">这是一个div标签。</div>

$(document).ready(function(){
  $("#myDiv").empty();
});

In the above code, we use the document's ready() method to ensure that the JQuery code is executed after the page is loaded. Then, we get the div element with the ID "myDiv" through the selector and use the empty() method to delete all its child elements, including text nodes.

Run the code at this time and you will see that the text in the div tag is completely deleted.

3. Use the remove() method to delete the entire div element

Sometimes, we not only need to delete the text in the div, but also delete the entire div element. At this time, we can use JQuery's remove() method. The following is a sample code for using the remove() method to delete a div element:

<div id="myDiv">这是一个div标签。</div>

$(document).ready(function(){
  $("#myDiv").remove();
});

In the above code, we use the document's ready() method to ensure that the JQuery code is executed after the page is loaded. Then, we get the div element with the ID "myDiv" through the selector and use the remove() method to completely remove it from the document.

Run the code at this time and you will see that the entire div element is deleted.

4. Summary

JQuery is a very powerful JavaScript library, which can greatly simplify the process of manipulating HTML documents. Clearing or deleting text in a div is one of our common operations, and it can be easily done using JQuery. In code, we can use the text() method to clear text, use the empty() method to delete text nodes, and use the remove() method to delete the entire div element.

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