Commit 6ad5b9c

dev-madhurendramadhuredra

and

madhuredra

authored

added numberOfDigitsUsingLog method (TheAlgorithms#1364)

* added numberOfDigitsUsingLog method * added JSDoc comment --------- Co-authored-by: madhuredra <madhuredra.tiwari@zemosolabs.com>

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Lines changed: 11 additions & 1 deletion

Original file line number	Diff line number	Diff line change
`@@ -9,4 +9,14 @@`
`9`	`9`
`10`	`10`	`const numberOfDigit = (n) => Math.abs(n).toString().length`
`11`	`11`
`12`		`-export { numberOfDigit }`
	`12`	`+/**`
	`13`	`+ * Returns the number of digits of a given integer.`
	`14`	`+ *`
	`15`	`+ * @param {number} n - The integer for which to count digits.`
	`16`	`+ * @returns {number} The number of digits in the integer.`
	`17`	`+ * @see https://math.stackexchange.com/questions/2145480/how-does-the-logarithm-returns-the-number-of-digits-of-a-number`
	`18`	`+ * @author dev-madhurendra`
	`19`	`+ */`
	`20`	`+const numberOfDigitsUsingLog = (n) => n === 0 ? 1 : Math.floor(Math.log10(Math.abs(n))) + 1`
	`21`	`+`
	`22`	`+export { numberOfDigit, numberOfDigitsUsingLog }`

Lines changed: 10 additions & 1 deletion

Original file line number	Diff line number	Diff line change
`@@ -1,4 +1,4 @@`
`1`		`-import { numberOfDigit } from '../NumberOfDigits'`
	`1`	`+import { numberOfDigit,numberOfDigitsUsingLog } from '../NumberOfDigits'`
`2`	`2`
`3`	`3`	`describe('NumberOfDigits', () => {`
`4`	`4`	`it('should return the correct number of digits for an integer', () => {`
`@@ -8,4 +8,13 @@ describe('NumberOfDigits', () => {`
`8`	`8`	`it('should return the correct number of digits for a negative number', () => {`
`9`	`9`	`expect(numberOfDigit(-2346243)).toBe(7)`
`10`	`10`	`})`
	`11`	`+`
	`12`	`+ it.each([`
	`13`	`+ [0, 1],`
	`14`	`+ [123423232, 9],`
	`15`	`+ [-123423232, 9],`
	`16`	`+ [9999, 4]`
	`17`	`+ ])('should return the correct number of digits in an integer', (value, expected) => {`
	`18`	`+ expect(numberOfDigitsUsingLog(value)).toBe(expected)`
	`19`	`+ })`
`11`	`20`	`})`

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