10 examples of 'factorial of a number in javascript' in JavaScript

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5export default function factorial(number) {
6 let result = 1;
7
8 for (let i = 2; i <= number; i += 1) {
9 result *= i;
10 }
11
12 return result;
13}
1function factorial(num) {
2 if (num === 1) {
3 return num;
4 } else {
5 let hitung = num * factorial(num - 1);
6 console.log(hitung);
7 return num * factorial(num - 1);
8 }
9 }
3function factorialize(num) {
4 if (num<=1) {
5 return 1;//0的阶乘为0,同时也是递归出口
6 }
7 return num*factorialize(num-1);//使用递归
8}
25function factorialize(num) {
26 if (num < 2) {
27 return 1;
28 }
29 return num * factorialize(num - 1);
30}
194function factorial(num) {
195 const f = [];
196 function inner(n) {
197 if (n === 0 || n === 1) {
198 return 1;
199 }
200 if (f[n] > 0) {
201 return f[n];
202 }
203 return f[n] = inner(n - 1) * n;
204 }
205 return inner(num);
206}
2function factorial(a) {
3 a = parseInt(a);
4 if (a <= 0)
5 return 1;
6 else
7 return a * factorial(a - 1);
8}
11function factorial(n) {
12 if (n < 1) {
13 return 1;
14 } else {
15 return n * factorial(n - 1);
16 }
17}
4function unfactorial(num) {
5 var d = 1;
6 while (num > 1 && Math.round(num) === num) {
7 d += 1;
8 num /= d;
9 }
10 if (num === 1) return d + "!";
11 else return "NONE";
12}
335function factorial(n) {
336 if (n == 0) {
337 return 1;
338 }
339 f = libs.BigInteger.BigInteger.ONE;
340 for (var i=1; i<=n; i++) {
341 f = f.multiply(new libs.BigInteger.BigInteger(i));
342 }
343 return f;
344}
15function factorial(n){
16 if ((n == 0) || (n == 1))
17 return 1;
18 else
19 return (n * factorial(n - 1));
20}

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