This is the third in a little trio of articles where I’m showing how quickly and easily you can implement common web features without relying on heavy libraries or complicated frameworks. This time, I worked on a "read more" button for clipped content - with maximal automation.
Feel Free to Use the Code
The code is straightforward, just vanilla JavaScript—no libraries, no magic. It's super lightweight and easy to integrate. It uses IntersectionObserver so it doesn't even run on elements until they're visible, saving performance overhead (though you may want to remove this optimization for smaller webpages).
https://gist.github.com/TomJPro/39e96d2cd6cbfcf908ad99273b2211a5
Discover a Whole New World of Simplicity
I assumed libraries existed for this because the problem seemed complex. But when I tried writing it myself, my head was stuck in the idea that it needed a complicated solution—my mind lied to me! Now I’m convinced these libraries exist because other developers also overthink the problem or try to solve every possible scenario with one huge solution. That can never truly work in a world where we count milliseconds.
When I wrote my first simple piece of code that did the job, it was just 20 lines compared to 100kb of a library, and it was even easier to customize for each project. It honestly felt like discovering a new world.
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Final Thoughts
After seeing three common features (like a carousel, line clipping with a "read more", and similar scripts) coded in just a few minutes (including JS, HTML, and CSS), I hope it's clear that you often don't need heavy libraries. Sometimes, plain old JavaScript and a dash of CSS is all it takes to achieve slick, performant results.
The above is the detailed content of #ustom Code Instead of Plugins/Libraries - Showcase of Simplicity. For more information, please follow other related articles on the PHP Chinese website!

JavaScript is widely used in websites, mobile applications, desktop applications and server-side programming. 1) In website development, JavaScript operates DOM together with HTML and CSS to achieve dynamic effects and supports frameworks such as jQuery and React. 2) Through ReactNative and Ionic, JavaScript is used to develop cross-platform mobile applications. 3) The Electron framework enables JavaScript to build desktop applications. 4) Node.js allows JavaScript to run on the server side and supports high concurrent requests.

Python is more suitable for data science and automation, while JavaScript is more suitable for front-end and full-stack development. 1. Python performs well in data science and machine learning, using libraries such as NumPy and Pandas for data processing and modeling. 2. Python is concise and efficient in automation and scripting. 3. JavaScript is indispensable in front-end development and is used to build dynamic web pages and single-page applications. 4. JavaScript plays a role in back-end development through Node.js and supports full-stack development.

C and C play a vital role in the JavaScript engine, mainly used to implement interpreters and JIT compilers. 1) C is used to parse JavaScript source code and generate an abstract syntax tree. 2) C is responsible for generating and executing bytecode. 3) C implements the JIT compiler, optimizes and compiles hot-spot code at runtime, and significantly improves the execution efficiency of JavaScript.

JavaScript's application in the real world includes front-end and back-end development. 1) Display front-end applications by building a TODO list application, involving DOM operations and event processing. 2) Build RESTfulAPI through Node.js and Express to demonstrate back-end applications.

The main uses of JavaScript in web development include client interaction, form verification and asynchronous communication. 1) Dynamic content update and user interaction through DOM operations; 2) Client verification is carried out before the user submits data to improve the user experience; 3) Refreshless communication with the server is achieved through AJAX technology.

Understanding how JavaScript engine works internally is important to developers because it helps write more efficient code and understand performance bottlenecks and optimization strategies. 1) The engine's workflow includes three stages: parsing, compiling and execution; 2) During the execution process, the engine will perform dynamic optimization, such as inline cache and hidden classes; 3) Best practices include avoiding global variables, optimizing loops, using const and lets, and avoiding excessive use of closures.

Python is more suitable for beginners, with a smooth learning curve and concise syntax; JavaScript is suitable for front-end development, with a steep learning curve and flexible syntax. 1. Python syntax is intuitive and suitable for data science and back-end development. 2. JavaScript is flexible and widely used in front-end and server-side programming.

Python and JavaScript have their own advantages and disadvantages in terms of community, libraries and resources. 1) The Python community is friendly and suitable for beginners, but the front-end development resources are not as rich as JavaScript. 2) Python is powerful in data science and machine learning libraries, while JavaScript is better in front-end development libraries and frameworks. 3) Both have rich learning resources, but Python is suitable for starting with official documents, while JavaScript is better with MDNWebDocs. The choice should be based on project needs and personal interests.


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