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How to output prompt box in jquery

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Release： 2023-05-25 12:54:09

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When developing websites, web applications or mobile applications, we often need to introduce or use the jQuery library. One common application is to output tooltips. By outputting a prompt box, we can make the user more clearly aware of the status of a certain interaction or operation. This article will introduce how to use jQuery to output a prompt box.

First, we need to introduce the jQuery library file into the project. This can be introduced by downloading the jQuery file and placing it into your project, or using a CDN (Content Delivery Network). In the HTML file, we can use the following code:

<head>
  <script src="https://cdn.bootcdn.net/ajax/libs/jquery/3.6.0/jquery.min.js"></script>
  <script src="yourScript.js"></script>
</head>

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wherehttps://cdn.bootcdn.net/ajax/libs/jquery/3.6.0/jquery.min.js is the CDN address of jQuery, yourScript.js is the name of the file containing your JavaScript code.

Once we successfully introduce the jQuery library, we can start using the prompt box function it provides.

Pop-up prompt box (Alert)

Alert prompt box is one of the simplest prompt box types. It is triggered when the user clicks a button or link to pop up a dialog box containing the specified text content. Outputting an Alert prompt box can be achieved with the following code:

$(document).ready(function(){
  alert("Hello World!");
});

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In this code, when the HTML document is loaded, the executed function alert("Hello World!"); will A prompt box containing the text Hello World! pops up.

Confirmation prompt box (Confirm)

Confirm prompt box is a common interaction method, used to remind the user to confirm when performing an important operation. The confirmation prompt box will pop up two buttons, usually one is the "Confirm" button and the other is the "Cancel" button. Outputting a Confirm prompt box can be achieved by using the following code:

$(document).ready(function(){
  let result = confirm("你确定要删除当前这个文件吗？");
  if (result) {
    // 用户点击了确认按钮后执行的代码
  }
  else {
    // 用户点击了取消按钮后执行的代码
  }
});

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In this code, the system will pop up a prompt box asking the user whether to perform a certain operation. let result = confirm("Are you sure you want to delete the current file?"); This code will output a message containing the text "Are you sure you want to delete the current file?" with "Confirm" and "Cancel" button prompt box. When the user clicks one of the buttons, the function returns a Boolean value indicating whether the user clicked the "Confirm" or "Cancel" button.

Input prompt box (Prompt)

The Prompt prompt box is an interactive method that allows the user to enter text. It is usually used to request additional information from the user or enter certain data. The prompt box will contain input boxes and confirm and cancel buttons. Outputting a Prompt prompt box can be achieved by using the following code:

$(document).ready(function(){
  let name = prompt("请输入你的名字：");
  if (name != null && name != "") {
    alert("欢迎你，" + name + "！");
  }
});

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This code will output a prompt box containing an input box, a confirmation button and a cancel button. The prompt is "Please enter your name: ". When the user presses the confirm button, we will output a welcome message based on the text entered by the user.

In this article, we introduce the method of outputting pop-up prompt box, confirmation prompt box and input prompt box in jQuery. They can help us enhance user experience and improve user interactivity in web applications. Remember to carefully test and verify the function and effect of each prompt box during the development process to ensure that they can work correctly and better serve our users.

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