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Get Average

getAverage​

The getAverage function calculates the average of a set of provided numbers, rounding the result to three decimal places. It returns NaN if no valid numbers are provided.

Function Signature​

getAverage(...numbers: Numeric[]): number;

Parameters​

  • numbers: A list of numbers or numeric strings to calculate the average. Each item in the list can be a number or a numeric string (e.g., "5").

Return Value​

  • Returns the average of the provided numbers, rounded to three decimal places.
  • If no valid numbers are provided, it returns NaN.

Example Usage​

import { getAverage } from 'nhb-toolbox';

console.log(getAverage(1, 2, 3));    // 2
console.log(getAverage(5, 5, '5'));  // 5
console.log(getAverage());           // NaN

Notes​

  • The function will automatically skip invalid numbers, including NaN and non-numeric values.
  • It rounds the result to three decimal places for better readability and precision.
  • Works with both number and numeric string types ("5", "10.2").

Aliases​

getAverage can also be imported using the alias:

  • calculateAverage
  • getAverageOfNumbers

Conclusion​

The getAverage function is useful for calculating the mean of a series of numeric inputs, whether provided as numbers or numeric strings, ensuring a clean and precise result with automatic handling of invalid inputs.