How does JavaScript get all the prime numbers in an array
This article mainly explains "how to get all the prime numbers in the array by JavaScript". Friends who are interested might as well take a look at it. The method introduced in this paper is simple, fast and practical. Let's let the editor take you to learn "how to get all the prime numbers in the array by JavaScript".
1. Use the for loop statement or the filter () method to loop through the array, subtracting an array element from 2 to sqrt (the element itself) in each loop.
2. If it can be removed, it means that the group of elements are not prime numbers, but prime numbers.
If the set of elements is a prime, the element is output.
Example
Var a = [31 var 33 var flag 35 [31 var 33 var flag 35]; for (var j = 2; for j = 2; Jakoj)
