10 recommended articles on interesting JavaScript topics
Suppose I have a cube of iron, and I soak it whole into a bucket of red paint. Please note that the pigment cannot penetrate the iron, which means it can only stain the surface. Then, I fished out the iron block and cut it. The iron block has three dimensions as a cube. I made N flat cuts on each dimension to turn it into smaller cubes. For example, if I cut each face 2 times, I can get 27 small cubes, 3*3*3. Now the question is, after cutting N times, how many of the small cubes obtained are dipped in red paint? (Things that are dyed on one or more sides are counted.) The idea is very simple: to determine the number of cubes dipped in paint, subtract the number of undyed cubes from the total number of small cubes. Note: If I did not cut, the result should be 1. So we have the following code: var countSquares = function(cuts){ if(cuts == 0){return 1}; return Math.pow(
1. JavaScript fun question: Count the number of cubes filled with paint
Introduction: Suppose I have a cube of iron, and I soak it in a bucket containing red paint. Please note that the paint cannot penetrate into the iron, that is to say. You can only dye the surface
2. JavaScript fun question: Help the postman sort addresses
#Introduction: The following is my implementation. What needs to be noted in particular is that if the postal code format is incorrect (not 8 digits), then there is no need to perform string operations and return directly ##.
#3.JavaScript Fun Question: Counting Precipitation
##Introduction: The staff of the meteorological station has entrusted you to analyze a set of data. Here is the precipitation of some cities around the world from January to December. The data for each city is separated by "\n", and each The city name is followed by a ":" colon
##4. JavaScript Fun Question: Find the Murderer
##Introduction: The result should be a string. If not found, return an empty string. If multiple are found, please return these and separate them with commas. . 
JavaScript Interesting Question: Water Crisis
Introduction: Write a function that receives 2 parameters, the first is water representing the reserve amount N, and the second is ageOfDwellerArray representing the age list
6. .
##Introduction: Let’s take a look first With some examples, we can quickly understand what "in pairs" means.
7. JavaScript Fun Question: Building a House
Introduction: The volume of the bottom floor is N to the third power, and the volume of the penultimate floor is (N-1 ) to the third power, and so on, the volume of the top layer is 1 to the third power
##8. 
JavaScript Interesting Question: Statistical Binary
Introduction: Those who work on the front end must have few opportunities to come into contact with binary. Aren’t those bit operations something that the bottom layer should consider? 9. Interesting JavaScript question: Buggy arithmetic sequence Introduction: A program has a bug when creating an arithmetic sequence. One item in the arithmetic sequence is missing, but the other items are intact. Please find this missing item. 10. JavaScript Fun Questions: Points, Lines, Surfaces ##Introduction: The title description is very simple. Given the coordinates of some points, return true if they are on the same straight line. 
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JavaScript Engines: Comparing Implementations
Apr 13, 2025 am 12:05 AM
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.
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.
From C/C to JavaScript: How It All Works
Apr 14, 2025 am 12:05 AM
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.
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: Community, Libraries, and Resources
Apr 15, 2025 am 12:16 AM
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.
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.
