typedash
Version:
modern, type-safe collection of utility functions
23 lines (21 loc) • 656 B
JavaScript
//#region src/functions/sum/sum.ts
/**
* Implementation for all overloads.
* @param array The array to iterate over.
* @param mapper The function used to extract a numeric value from each element.
* @returns The sum of all values in the array, or `0` if the array is empty or nil.
*/
function sum(array, mapper) {
if (array == null) return 0;
return array.map((value, index, array_) => {
return mapper?.(value, index, array_) ?? value ?? 0;
}).reduce((draft, value) => draft + value, 0);
}
//#endregion
Object.defineProperty(exports, 'sum', {
enumerable: true,
get: function () {
return sum;
}
});
//# sourceMappingURL=sum-CSt9AUZP.cjs.map