Add JavaScript factorial examples · commitRahul/basic-programs@a45c82b · GitHub

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Vercryger

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Add JavaScript factorial examples

1 parent e1a138f commit a45c82b
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+30Lines changed: 30 additions & 0 deletions

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• javascript
  • Factorial
    • imperative-factorial.js
  • Recursion
    • recursive-factorial.js

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‎javascript/Factorial/imperative-factorial.js‎

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+17Lines changed: 17 additions & 0 deletions

Original file line number	Diff line number	Diff line change
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	1	+ function factorial(n) {
	2	+ if (n < 0 ) throw new Error('Argument must be a positive integer.');
	3	+
	4	+ let result = 1;
	5	+
	6	+ for (let i = 2; i <= n; i++) {
	7	+ result = result * i;
	8	+ }
	9	+
	10	+ return result;
	11	+ }
	12	+
	13	+ const inputs = [4, 6, 8, 2, -1];
	14	+
	15	+ inputs.forEach(n => {
	16	+ console.log(`Factorial of ${n}: ${factorial(n)}`);
	17	+ });

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‎javascript/Recursion/recursive-factorial.js‎

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+13Lines changed: 13 additions & 0 deletions

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	1	+ function factorial(n) {
	2	+ if (n < 0 ) throw new Error('Argument must be a positive integer.');
	3	+
	4	+ if (n === 0 || n === 1) return 1;
	5	+
	6	+ return n * factorial(n - 1);
	7	+ }
	8	+
	9	+ const inputs = [4, 6, 8, 2, -1];
	10	+
	11	+ inputs.forEach(n => {
	12	+ console.log(`Factorial of ${n}: ${factorial(n)}`);
	13	+ });

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