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This article will introduce you to the method of calculating the factorial of a number using javascript. I hope it will be helpful to you! In mathematics, the factorial of a nonnegative integer n, denoted by n!, is the product of all positive integers less than or equal to n. For example, 5!= 5 x 4 x 3 x 2 x 1 = 120
The following will introduce to you the implementation method of calculating the factorial of a number in JavaScript:
The HTML code is as follows:
<!DOCTYPE html> <html> <head> <meta charset=utf-8 /> <title>计算一个数的阶乘</title> </head> <body> </body> </html>
The js code is as follows:
function factorial(x) {
if (x === 0)
{
return 1;
}
return x * factorial(x-1);
}console.log(factorial(5));Output:
120
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This article is an introduction to the method of calculating the factorial of a number using JavaScript. It is simple and easy to understand. I hope it will be helpful to friends in need!
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