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 ##.

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

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##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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