


js plug-in YprogressBar achieves beautiful progress bar effect_javascript skills
Introduction
YprogressBar is a progress bar plug-in based on HTML5.
YprogressBar is a lightweight progress bar plug-in that is easy to use, takes up little resources, and imitates a good compression decompression interface with a digital display. It also supports adding parameters in the description to dynamically display more detailed execution information. Such as upload speed, remaining time, etc.
YprogressBar code is concisely written and has a reasonable structural design, which will not have any adverse effects on your system.
Interface preview
Instructions for use
File Reference
Simply quote the yprogressbar.css and yprogressbar.js files.
Usage Overview
var ypb = new YprogressBar({ title: "正在上传文件...", des: "上传速度:{{y:speed}}MB/秒 剩余时间约{{y:second}}秒", closeable: true, cancelCallback: function(rate, vars){ console.log(rate); console.log(vars); } }); ypb.show();
Instantiation parameter description
In order to fully demonstrate the object-oriented style, if you want to use YprogressBar, you must instantiate it. When instantiating, you need some parameters. The whole thing is an object. The specific parameters will be explained one by one below.
title
Progress bar title, explain what this progress bar is for.
des
For a more detailed description of what you want to do, you can write one sentence directly.
Sometimes we want to do something fancy, such as displaying upload speed, remaining time, etc. YprogressBar fully supports you to do this. You only need to add variables to the description. The format is: {{y:name}}.
For example: des: "Upload speed: {{y:speed}}MB/second, remaining time is about {{y:second}} seconds", where {{y:speed}} and {{y:second} } is the variable.
If a variable is specified here, the value of the variable must be specified in the second parameter when performing an update operation.
closeable
Destruction callback. Once the YprogressBar is destroyed, this callback will be triggered whether the destroy method is called manually or the user clicks the close button.
When the callback is triggered, two parameters will be passed in, namely: the current execution progress and the parameter value in the description at this moment (object contains name and value).
show method
No parameters are required.
The progress bar will not be displayed until the show method is called.
update method
Update progress, two parameters.
The first parameter is the current progress, expressed directly as a number, for example: 26, representing 26%.
The second parameter is an object, which needs to contain the values of all variables in the description. If there are no variables in the description, this parameter can be ignored.
For example:
ypb.update(26,{ speed: 312, second: 5 });
destroy method
Destroy the progress bar and release memory.
The above is the entire content of this article, I hope you all like it.

Node.js excels at efficient I/O, largely thanks to streams. Streams process data incrementally, avoiding memory overload—ideal for large files, network tasks, and real-time applications. Combining streams with TypeScript's type safety creates a powe

The differences in performance and efficiency between Python and JavaScript are mainly reflected in: 1) As an interpreted language, Python runs slowly but has high development efficiency and is suitable for rapid prototype development; 2) JavaScript is limited to single thread in the browser, but multi-threading and asynchronous I/O can be used to improve performance in Node.js, and both have advantages in actual projects.

JavaScript originated in 1995 and was created by Brandon Ike, and realized the language into C. 1.C language provides high performance and system-level programming capabilities for JavaScript. 2. JavaScript's memory management and performance optimization rely on C language. 3. The cross-platform feature of C language helps JavaScript run efficiently on different operating systems.

JavaScript runs in browsers and Node.js environments and relies on the JavaScript engine to parse and execute code. 1) Generate abstract syntax tree (AST) in the parsing stage; 2) convert AST into bytecode or machine code in the compilation stage; 3) execute the compiled code in the execution stage.

The future trends of Python and JavaScript include: 1. Python will consolidate its position in the fields of scientific computing and AI, 2. JavaScript will promote the development of web technology, 3. Cross-platform development will become a hot topic, and 4. Performance optimization will be the focus. Both will continue to expand application scenarios in their respective fields and make more breakthroughs in performance.

Both Python and JavaScript's choices in development environments are important. 1) Python's development environment includes PyCharm, JupyterNotebook and Anaconda, which are suitable for data science and rapid prototyping. 2) The development environment of JavaScript includes Node.js, VSCode and Webpack, which are suitable for front-end and back-end development. Choosing the right tools according to project needs can improve development efficiency and project success rate.

Yes, the engine core of JavaScript is written in C. 1) The C language provides efficient performance and underlying control, which is suitable for the development of JavaScript engine. 2) Taking the V8 engine as an example, its core is written in C, combining the efficiency and object-oriented characteristics of C. 3) The working principle of the JavaScript engine includes parsing, compiling and execution, and the C language plays a key role in these processes.

JavaScript is at the heart of modern websites because it enhances the interactivity and dynamicity of web pages. 1) It allows to change content without refreshing the page, 2) manipulate web pages through DOMAPI, 3) support complex interactive effects such as animation and drag-and-drop, 4) optimize performance and best practices to improve user experience.


Hot AI Tools

Undresser.AI Undress
AI-powered app for creating realistic nude photos

AI Clothes Remover
Online AI tool for removing clothes from photos.

Undress AI Tool
Undress images for free

Clothoff.io
AI clothes remover

Video Face Swap
Swap faces in any video effortlessly with our completely free AI face swap tool!

Hot Article

Hot Tools

MantisBT
Mantis is an easy-to-deploy web-based defect tracking tool designed to aid in product defect tracking. It requires PHP, MySQL and a web server. Check out our demo and hosting services.

MinGW - Minimalist GNU for Windows
This project is in the process of being migrated to osdn.net/projects/mingw, you can continue to follow us there. MinGW: A native Windows port of the GNU Compiler Collection (GCC), freely distributable import libraries and header files for building native Windows applications; includes extensions to the MSVC runtime to support C99 functionality. All MinGW software can run on 64-bit Windows platforms.

SublimeText3 English version
Recommended: Win version, supports code prompts!

PhpStorm Mac version
The latest (2018.2.1) professional PHP integrated development tool

EditPlus Chinese cracked version
Small size, syntax highlighting, does not support code prompt function
