nhb-toolbox/dist/esm/date/plugins/dayPartPlugin.js

A versatile collection of smart, efficient, and reusable utility functions and classes for everyday development needs.

import { DEFAULT_RANGES } from '../constants.js';
/** * Plugin to inject `getPartOfDay` method */
export const dayPartPlugin = (ChronosClass) => {
    ChronosClass.prototype.getPartOfDay = function (config) {
        const hour = this.hour;
        const ranges = {
            ...DEFAULT_RANGES,
            ...config,
        };
        for (const [part, [start, end]] of Object.entries(ranges)) {
            const from = Number(start);
            const to = Number(end);
            if (from <= to) {
                if (hour >= from && hour <= to) {
                    return part;
                }
            }
            else {
                // Wraparound logic (e.g., 20 to 04 means 20–23 OR 00–04)
                if (hour >= from || hour <= to) {
                    return part;
                }
            }
        }
        return 'night';
    };
};