2021-12-15 22:58:28 +05:30
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/**
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* @function mean
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* @description This script will find the mean value of a array of numbers.
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2025-09-04 07:01:22 +03:00
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* @param {number[]} numbers - Array of integer
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* @return {number} - mean of numbers.
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* @throws {TypeError} If the input is not an array or contains non-number elements.
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* @throws {Error} If the input array is empty.
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2022-02-21 06:58:40 -04:00
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* @see [Mean](https://en.wikipedia.org/wiki/Mean)
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2021-12-15 22:58:28 +05:30
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* @example mean([1, 2, 4, 5]) = 3
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* @example mean([10, 40, 100, 20]) = 42.5
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*/
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2025-09-04 07:01:22 +03:00
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const mean = (numbers) => {
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if (!Array.isArray(numbers)) {
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2021-12-15 22:58:28 +05:30
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throw new TypeError('Invalid Input')
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2025-09-04 07:01:22 +03:00
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} else if (numbers.length === 0) {
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throw new Error('Array is empty')
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2021-12-15 22:58:28 +05:30
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}
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2019-07-01 15:07:01 -04:00
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2025-09-04 07:01:22 +03:00
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let total = 0
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numbers.forEach((num) => {
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if (typeof num !== 'number') {
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throw new TypeError('Invalid Input')
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}
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total += num
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})
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return total / numbers.length
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2019-07-01 15:07:01 -04:00
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}
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2020-10-11 19:47:49 +00:00
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export { mean }
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