5 recommended articles about naming
The function scope in JavaScript exists to "hide" variables and functions. It conforms to our principle of least privilege. Another benefit is that it can avoid conflicts with identifiers of the same name. Today we will mainly talk about this immediate execution function. Before this review, anonymous functions and named functions, whether anonymous or named, are function declarations for function expressions. They must have a name, otherwise an error will be reported function foo(){ //Function declaration //...}Here I will explain an Easter egg. Maybe you always like to use some sample codes when I write articles. Words like fn, func, demo, foo, bar, foobar fn and func are the abbreviations of function Demo is the abbreviation of the word demonstration "example" foo, bar, foobar we have
1. Detailed explanation of JavaScript anonymous, named functions and immediate execution functions IIFE
Introduction: The function scope in JavaScript exists to "hide" variables and functions in line with our principle of least privilege. Another benefit is that it can avoid identifiers with the same name. Today we mainly talk about this immediate execution function. Before that, we review anonymous functions and named functions. Whether anonymous or named, anonymous functions and named functions are function declarations for function expressions, so they must have names. Otherwise, an error will be reported function foo(){ //Function declaration //...} This
2. C#Optional parameters and named parameters
Introduction: C# optional parameters and named parameters
3. javascript Recommended four calling methods for named functions, page 1/3_javascript skills
Introduction: There is no difference in the execution results of the four methods. But if the function has a return value, you may be a little disappointed when calling it with new.
Introduction: The various calling methods of named functions have been introduced in the previous section. This article looks at how to determine whether a function is called by new or by other methods.
5. Summary of various calling methods of named functions in JavaScript_javascript skills
Introduction: This article It mainly introduces a summary of the various calling methods of named functions in JavaScript. This article summarizes 4 methods. Friends in need can refer to
[Related Q&A recommendations]:
javascript - Regarding the selection of dispatch and callback in Vue
javascript - Regarding the reassignment of the function itself within the named IIFE?
c++ - Unnamed namespace cannot be placed in .h
javascript - Vue component named slot traversal problem
javascript - Named functions cannot be accessed outside the function
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Python vs. JavaScript: The Learning Curve and Ease of Use
Apr 16, 2025 am 12:12 AM
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.
JavaScript and the Web: Core Functionality and Use Cases
Apr 18, 2025 am 12:19 AM
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.
JavaScript in Action: Real-World Examples and Projects
Apr 19, 2025 am 12:13 AM
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.
Understanding the JavaScript Engine: Implementation Details
Apr 17, 2025 am 12:05 AM
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 vs. JavaScript: Development Environments and Tools
Apr 26, 2025 am 12:09 AM
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.
The Role of C/C in JavaScript Interpreters and Compilers
Apr 20, 2025 am 12:01 AM
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.
From Websites to Apps: The Diverse Applications of JavaScript
Apr 22, 2025 am 12:02 AM
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 vs. JavaScript: Use Cases and Applications Compared
Apr 21, 2025 am 12:01 AM
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.
