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This article mainly introduces "how to use JavaScript to realize the algorithm problem of array". In the daily operation, I believe many people have doubts about how to use JavaScript to realize the algorithm problem of array. Xiaobian consulted all kinds of data and sorted out simple and easy-to-use operation methods. I hope it will be helpful for you to solve the problem of "how to use JavaScript to realize the algorithm problem of array". Next, please follow the editor to study!

Title:

There is an array, if there are three values: [3pd2pd6]. Return after cross combination: 3-2, 3-6, 2-6, 3-2-6.

If the array has four values: [3, 2, 2, 6, 9]. Return after cross-combination: 3-2, 3-6, 3-9, 2-6, 2-9, 6-9, 6-9, 3-9, 3-2-9, 3-2-9, 3-2-9.

If it is 5 values, 6 values, and so on, what is the result, and how to achieve this function with JavaScript?

The code is as follows:

The general idea is:

1. The big loop covers the small loop, and the big loop circulates according to the degree of the array. Each time, the first item of the array is removed.

2. A local variable index is defined in the mini-loop. The idea here is that each loop divides the array into a fixed prefix and a residual change value, and then splices the remaining change value and the prefix into the result.

The code flow chart is as follows:

At this point, the study of "how to use JavaScript to achieve the algorithm of arrays" is over. I hope to be able to solve your doubts. The collocation of theory and practice can better help you learn, go and try it! If you want to continue to learn more related knowledge, please continue to follow the website, the editor will continue to work hard to bring you more practical articles!

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