jquery adds multiple inputs

In front-end development, jQuery can be used to easily implement the function of dynamically adding input boxes. This feature is very useful when users need to input multiple contents. It can make our application more flexible, able to meet user needs and improve user experience. Below I will introduce how to use jQuery to add multiple input boxes.

Basic idea

Our goal is to dynamically add multiple input boxes, so we need to first determine a basic idea. We will add a button to the page, and when the user clicks the button, a new input box will be dynamically generated. In addition, we also need to define some properties and styles of the input box.

Step 1: HTML part

First, add a button and a container to accommodate the new input box in the HTML code. The container can be a

tag, or an element of type "text" with an tag.

Add input box

As you can see, we have defined an ID for the button and container, which will be used in the subsequent JavaScript code.

Step 2: CSS part

Since we need to add input boxes dynamically, we need to define some styles and attributes for the new input box so that it can look like other input boxes Same.

input-container input {

margin-bottom: 10px;
display: block;
}

Here we define a style for the new The input box is set with a bottom margin and a block-level display property.

Step 3: jQuery code part

Now, we can write jQuery code to implement the function of dynamically adding a new input box.

$(document).ready(function() {
$("#add-input").click(function() {

$("#input-container").append('<input type="text" name="input[]" />');

});
} );

First, we use the document.ready event to ensure that the code runs after the page loads. We then define a click event for the button, which will add a new input box to the container when the button is clicked. Here we use jQuery's append() method to add a new input box to the container using HTML syntax.

In addition, we also set a name for the new input box as "input[]", which will facilitate our processing in the background PHP code.

Finally, we add some code to remove the newly added input box:

$(document).on('click', '.remove-input', function( ) {
$(this).parent().remove();
});

This code will define a click event for each input box we add. When the user clicks When you click the delete button, it will remove the input box.

Summary

In this article, we use jQuery to complete the function of dynamically adding multiple input boxes. jQuery is a very powerful tool that allows us to achieve various interactions more easily and improve user experience. By modifying the code in this article, you can make it more suitable for your own application.

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