jquery multi-step progress bar

With the rapid development of Internet technology, more and more web applications need to perform some complex operations, such as submitting forms to the backend server, uploading files, etc. Before these operations are completed, the user cannot know whether the operation was successful, which can easily lead to user dissatisfaction. Therefore, in order to better remind the user of the progress of the ongoing operation, the multi-step progress bar came into being.

This article will introduce a multi-step progress bar based on jQuery. Through the multi-step progress bar, users can clearly understand the progress of the current operation, thereby avoiding uncertainty in the operation process and improving user experience.

Implementation ideas:

In order to implement a multi-step progress bar, the first step needs to be to create an empty progress bar container in the page, for example:

<div class="progress-bar">
    <div class="progress"></div>
</div>

Created here A container named progress-bar, with progress as the element for progress display.

Next, introduce the jQuery library and the custom multi-step progress bar jQuery plug-in into the page:

<script src="https://cdn.bootcss.com/jquery/3.3.1/jquery.min.js"></script>
<script src="progress.js"></script>

Then, define and initialize the progress bar:

<script>
    $(function(){
        $('.progress-bar').progress();
    });
</script>

Use here Use jQuery's .progress() function to initialize a progress bar.

Next, we need to update the status of the progress bar during the operation. For example, we use the setProgress() function to update the status of the progress bar:

$(function(){
    $('.progress-bar').progress({
        steps: {
            prepare: '准备中',
            send: '发送中',
            receive: '接收中',
            done: '完成'
        }
    });

    // 开始一个操作
    function startOp(){
        $.ajax({
            type: 'POST',
            url: 'http://example.com/api',
            data: {
                // ...
            },
            beforeSend: function(){
                // 设置进度条状态为“准备中，进度0%”
                $('.progress-bar').progress('setProgress', 'prepare', 0);
            },
            success: function(data){
                // 设置进度条状态为“发送中，进度33%”
                $('.progress-bar').progress('setProgress', 'send', 33);
                // ...
            },
            error: function(){
                // 设置进度条状态为“完成，进度100%”
                $('.progress-bar').progress('setProgress', 'done', 100);
            }
        });
    }

    // 执行操作
    startOp();
});

In the startOp() function, we use $.ajax( ) The function simulates an operation and updates the status of the progress bar during the operation.

In the progress bar, we use an option called steps to define the name of each step of the progress bar, and the progress percentage corresponding to each step. Through the setProgress() function, we can update the status of the progress bar to display the step and progress of the current operation.

Final effect:

After the above steps, we successfully built a multi-step progress bar based on jQuery, realizing the progress display during the operation, allowing users to clearly understand the current operation progress, improving user experience.

Summary:

This article introduces the implementation of a multi-step progress bar based on jQuery, and demonstrates the use of the progress bar by simulating a specific operation process. The multi-step progress bar is a very practical web component that can improve user experience and effectively avoid uncertainty during the operation. By skillfully using jQuery's various methods, we can easily implement a beautiful progress bar to add color to web applications.

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