diff --git a/Maths/Abs.js b/Maths/Abs.js
index ed90edb34d..a418ee35f3 100644
--- a/Maths/Abs.js
+++ b/Maths/Abs.js
@@ -1,22 +1,22 @@
/**
- * @function absVal
+ * @function abs
* @description This script will find the absolute value of a number.
- * @param {Integer} num - The input integer
- * @return {Integer} - Absolute number of num.
- * @see [Absolute_value](https://en.wikipedia.org/wiki/Absolute_value)
- * @example absVal(-10) = 10
- * @example absVal(50) = 50
- * @example absVal(0) = 0
+ * @param {number} num - The input integer
+ * @return {number} - Absolute number of num.
+ * @see https://en.wikipedia.org/wiki/Absolute_value
+ * @example abs(-10) = 10
+ * @example abs(50) = 50
+ * @example abs(0) = 0
*/
-const absVal = (num) => {
- // Find absolute value of `num`.
- 'use strict'
- if (num < 0) {
- return -num
+const abs = (num) => {
+ const validNumber = +num // converted to number, also can use - Number(num)
+
+ if (Number.isNaN(validNumber)) {
+ throw new TypeError('Argument is NaN - Not a Number')
}
- // Executes if condition is not met.
- return num
+
+ return validNumber < 0 ? -validNumber : validNumber // if number is less then zero mean negative then it converted to positive. i.e -> n = -2 = -(-2) = 2
}
-export { absVal }
+export { abs }
diff --git a/Maths/test/Abs.test.js b/Maths/test/Abs.test.js
index 34143dfee4..6a67fa50d1 100644
--- a/Maths/test/Abs.test.js
+++ b/Maths/test/Abs.test.js
@@ -1,18 +1,39 @@
-import { absVal } from '../Abs'
+import { abs } from '../Abs'
+
+describe('Testing abs function', () => {
+ it('Testing for invalid types', () => {
+ expect(() => abs('234a')).toThrow()
+ expect(() => abs({})).toThrow()
+ expect(() => abs([12, -32, -60])).toThrow()
+ })
+
+ it('Testing for number of string type', () => {
+ expect(abs('-345')).toBe(345)
+ expect(abs('-345.455645')).toBe(345.455645)
+ })
+
+ it('Testing for a boolean type', () => {
+ expect(abs(true)).toBe(1)
+ expect(abs(false)).toBe(0)
+ })
-describe('absVal', () => {
it('should return an absolute value of a negative number', () => {
- const absOfNegativeNumber = absVal(-34)
+ const absOfNegativeNumber = abs(-34)
expect(absOfNegativeNumber).toBe(34)
})
it('should return an absolute value of a positive number', () => {
- const absOfPositiveNumber = absVal(50)
+ const absOfPositiveNumber = abs(50)
expect(absOfPositiveNumber).toBe(50)
})
it('should return an absolute value of a zero number', () => {
- const absOfPositiveNumber = absVal(0)
+ const absOfPositiveNumber = abs(0)
expect(absOfPositiveNumber).toBe(0)
})
+
+ it('should return an absolute value of any floating number', () => {
+ const absOfPositiveNumber = abs(-20.2034)
+ expect(absOfPositiveNumber).toBe(20.2034)
+ })
})
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