Useful library with JavaScript utilities.
От
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// ==UserScript==
// @name Utils
// @namespace https://rafaelgssa.gitlab.io/monkey-scripts
// @version 2.2.2
// @author rafaelgssa
// @description Useful library with JavaScript utilities.
// @match *://*/*
// ==/UserScript==
/**
* @typedef {'m' | 'h' | 'd' | 'w' | 'M' | 'y'} TimeUnit 'm' for minutes, 'h' for hours, 'd' for days, 'w' for weeks, 'M' for months and 'y' for years
*/
// eslint-disable-next-line
const Utils = (() => {
const ONE_SECOND_IN_MILLI = 1000;
const ONE_MINUTE_IN_MILLI = ONE_SECOND_IN_MILLI * 60;
const ONE_HOUR_IN_MILLI = ONE_MINUTE_IN_MILLI * 60;
const ONE_DAY_IN_MILLI = ONE_HOUR_IN_MILLI * 24;
const ONE_WEEK_IN_MILLI = ONE_DAY_IN_MILLI * 7;
const ONE_MONTH_IN_MILLI = ONE_DAY_IN_MILLI * 30;
/**
* Returns the plural form of a word if a number is different than 1, or the singular form otherwise.
* @param {string | [string, string]} wordOrPair If a word is provided, it is used as the singular form and the plural form is created by adding an 's' to the end of it. If a pair of words is provided, the first word is used as the singular form and the second word is used as the plural form.
* @param {number} n The number to use as reference.
* @param {boolean} doPrepend If true, the number is prepended to the output. Defaults to false.
* @returns {string} The word in the correct form, based on the number.
*
* @example
* Utils.getPlural('parent', 0); // 'parents'
* Utils.getPlural('parent', 1); // 'parent'
* Utils.getPlural('parent', 2); // 'parents'
* Utils.getPlural('parent', 0, true); // '0 parents'
* Utils.getPlural('parent', 1, true); // '1 parent'
* Utils.getPlural('parent', 2, true); // '2 parents'
* Utils.getPlural(['child', 'children'], 0); // 'children'
* Utils.getPlural(['child', 'children'], 1); // 'child'
* Utils.getPlural(['child', 'children'], 2); // 'children'
* Utils.getPlural(['child', 'children'], 0, true); // '0 children'
* Utils.getPlural(['child', 'children'], 1, true); // '1 child'
* Utils.getPlural(['child', 'children'], 2, true); // '2 children'
*/
const getPlural = (wordOrPair, n, doPrepend = false) => {
let form;
if (n === 1) {
form = Array.isArray(wordOrPair) ? wordOrPair[0] : wordOrPair;
} else {
form = Array.isArray(wordOrPair) ? wordOrPair[1] : `${wordOrPair}s`;
}
return doPrepend ? `${n} ${form}` : form;
};
/**
* Returns a relative time string for a UNIX time.
* @param {number} unix The UNIX time.
* @param {TimeUnit} unit The unit to use. Defaults to 'y'.
* @returns {string} The relative time string.
*/
const getRelativeTimeFromUnix = (unix, unit = 'y') => {
const now = Date.now() / 1e3;
const minutes = Math.round(Math.abs(now - unix) / 60);
return getRelativeTimeFromMinutes(minutes, unit);
};
/**
* Returns a relative time string for a number of minutes.
* @param {number} minutes The number of minutes.
* @param {TimeUnit} unit The unit to use. Defaults to 'y'.
* @returns {string} The relative time string.
*
* @example
* Utils.getRelativeTimeFromMinutes(30); // '30 minutes'
* Utils.getRelativeTimeFromMinutes(60); // 'about 1 hour'
* Utils.getRelativeTimeFromMinutes(60, 'm'); // '60 minutes'
* Utils.getRelativeTimeFromMinutes(60 * 24); // 'about 1 day'
* Utils.getRelativeTimeFromMinutes(60 * 24, 'h'); // 'about 24 hours'
* Utils.getRelativeTimeFromMinutes(60 * 24 * 7); // 'about 1 week'
* Utils.getRelativeTimeFromMinutes(60 * 24 * 7, 'd'); // 'about 7 days'
* Utils.getRelativeTimeFromMinutes(60 * 24 * 30); // 'about 1 month'
* Utils.getRelativeTimeFromMinutes(60 * 24 * 30, 'w'); // 'about 4 weeks'
* Utils.getRelativeTimeFromMinutes(60 * 24 * 30 * 12); // 'about 1 year'
* Utils.getRelativeTimeFromMinutes(60 * 24 * 30 * 12, 'M'); // 'about 12 months'
*/
const getRelativeTimeFromMinutes = (minutes, unit = 'y') => {
if (minutes < 60 || unit === 'm') {
return getPlural('minute', minutes, true);
}
const hours = Math.round(minutes / 60);
if (hours < 24 || unit === 'h') {
return `about ${getPlural('hour', hours, true)}`;
}
const days = Math.round(hours / 24);
if (days < 7 || unit === 'd') {
return `about ${getPlural('day', days, true)}`;
}
const weeks = Math.round(days / 7);
if (weeks < 4 || unit === 'w') {
return `about ${getPlural('week', weeks, true)}`;
}
const months = Math.round(days / 30);
if (months < 12 || unit === 'M') {
return `about ${getPlural('month', months, true)}`;
}
const years = Math.round(months / 12);
return `about ${getPlural('year', years, true)}`;
};
/**
* Returns a date string in the 'yyyy-MM-dd hh:mm:ss UTC' format.
* @param {Date} date The date to format.
* @returns {string} The formatted date string.
*/
const getUtcString = (date) => {
const isoString = date.toISOString(); // yyyy-MM-ddThh:mm:ss.sssZ
return `${isoString.replace('T', ' ').slice(0, -5)} UTC`;
};
/**
* Checks if a value is set.
* @template T
* @param {T} value The value to check.
* @returns {value is NonNullable<T>} Whether the value is set or not.
*/
const isSet = (value) => {
return typeof value !== 'undefined' && value !== null;
};
/**
* Sleeps for a number of seconds.
* @param {number} seconds How many seconds to sleep for.
* @returns {Promise<void>}
*/
const sleep = (seconds) => {
return new Promise((resolve) => window.setTimeout(resolve, seconds * ONE_SECOND_IN_MILLI));
};
return {
ONE_SECOND_IN_MILLI,
ONE_MINUTE_IN_MILLI,
ONE_HOUR_IN_MILLI,
ONE_DAY_IN_MILLI,
ONE_WEEK_IN_MILLI,
ONE_MONTH_IN_MILLI,
getPlural,
getRelativeTimeFromUnix,
getRelativeTimeFromMinutes,
getUtcString,
isSet,
sleep,
};
})();