(SteamCMS) Fish Template Special Post 1: Two Examples of Combining TopList Tags and JavaScript
First, you can refer to the SteamCMS Standard Template Tag Description to learn about the TopList tag and its attributes.
Add a number before the record in the Top list (of course it can also be a picture, here is just a simple example).
Principle description: First initialize a js variable at the front, in the middle of TopList, add 1 to the Js variable, and output it in the middle of the TopList loop body (the same reason I write asp code)
Key code:
.
In the code, the green part defines a global variable i and a function doit. The doit function runs in the red part of the loop body and outputs i. Blue is the TopList label. The dark yellow behind the red code is the title. The result of the above code will be to add a number before each record. Keep it simple. hey-hey.
Second example: Insert a blank line every fifth line, such as:
Insert a blank line every fifth line in the Top list (of course it can also be a picture, or other responsible code).
Principle description: First initialize a js variable at the front, in the middle of TopList, add 1 to the Js variable, and calculate whether the js variable is divisible by 5 in the TopList loop body, and if so, output a blank line.
Key code:
<script> <BR>//全局变量 <BR>var i=1; <BR>//输出i,并i自增 <BR>function doit(){ <BR>document.write(i); <BR>i++; <BR>} <BR></script><script>doit();</script><script> <BR>//全局变量 <BR>var i=1; <BR>//输出i,并i自增 <BR>function doit(){ <BR>if(i%5==0){//是否被5整除 <BR> document.write("<br />"); <BR>} <BR>i++; <BR>} <BR></script>In the code, the green part defines a global variable i and a function doit. The doit function runs in the red part of the loop body and determines whether it is divisible by 5. If so, it outputs <script>doit();</script>. Blue is the TopList label. The yellow in front of the red code is the title. The result of the above code will be to insert a blank line every fifth line. Keep it simple. hey-hey.

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.

The shift from C/C to JavaScript requires adapting to dynamic typing, garbage collection and asynchronous programming. 1) C/C is a statically typed language that requires manual memory management, while JavaScript is dynamically typed and garbage collection is automatically processed. 2) C/C needs to be compiled into machine code, while JavaScript is an interpreted language. 3) JavaScript introduces concepts such as closures, prototype chains and Promise, which enhances flexibility and asynchronous programming capabilities.

Different JavaScript engines have different effects when parsing and executing JavaScript code, because the implementation principles and optimization strategies of each engine differ. 1. Lexical analysis: convert source code into lexical unit. 2. Grammar analysis: Generate an abstract syntax tree. 3. Optimization and compilation: Generate machine code through the JIT compiler. 4. Execute: Run the machine code. V8 engine optimizes through instant compilation and hidden class, SpiderMonkey uses a type inference system, resulting in different performance performance on the same code.

JavaScript's applications in the real world include server-side programming, mobile application development and Internet of Things control: 1. Server-side programming is realized through Node.js, suitable for high concurrent request processing. 2. Mobile application development is carried out through ReactNative and supports cross-platform deployment. 3. Used for IoT device control through Johnny-Five library, suitable for hardware interaction.

I built a functional multi-tenant SaaS application (an EdTech app) with your everyday tech tool and you can do the same. First, what’s a multi-tenant SaaS application? Multi-tenant SaaS applications let you serve multiple customers from a sing


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