@gilbarbara/helpers

@gilbarbara/helpers

Collection of useful functions

Usage

npm i @gilbarbara/helpers

import { unique } from '@gilbarbara/helpers';

const password = unique(24, { includeSymbols: true });
console.log(password); // g9HBfQeeOgrP.V1?JhETxn9P

API

Arrays

getRandomItem(input: any[]): any
Get a random item from an array.

quickSort<T extends string | number>(input: T[]): T[]
Sort an array of numbers using a quick sort algorithm.

sortByLocaleCompare(key?: string, options?: Intl.CollatorOptions & { descending?: boolean }): SortFunction
Returns a sort function with localeCompare comparison.

Type Definition

interface SortFunction<T = string> {
  (left: PlainObject, right: PlainObject): number;
  (left: T, right: T): number;
}

Example

// with an array of strings
const strings = ['Mãe', 'limão', 'cachê', 'tião', 'amô', 'côncavo'];
strings.sort(sortByLocaleCompare());
// [ 'amô', 'cachê', 'côncavo', 'limão', 'Mãe', 'tião' ]

// with an array of objects
const objects = [{ key: 'réservé' }, { key: 'Premier' }, { key: 'Cliché' }, { key: 'communiqué' }, { key: 'café' }, { key: 'Adieu' }];
objects.sort(sortByLocaleCompare('key', { descending: true }));
/*
[
{ key: 'réservé' },
{ key: 'Premier' },
{ key: 'communiqué' },
{ key: 'Cliché' },
{ key: 'café' },
{ key: 'Adieu' }
]
*/

sortByPrimitive<T extends number | boolean>(key?: string, descending?: boolean = false): SortFunction
Returns a sort function with primitive values comparison.

Type Definition

interface SortFunction<T = string> {
  (left: PlainObject, right: PlainObject): number;
  (left: T, right: T): number;
}

Example

const objects = [{ cycle: 3, status: true }, { cycle: 1, status: false }, { cycle: 3, status: true }, { cycle: 4, status: false }];
objects.sort(sortByPrimitive('status', true));
/*
[
{ cycle: 3, status: true },
{ cycle: 3, status: true },
{ cycle: 1, status: false },
{ cycle: 4, status: false }
]
*/

sortComparator(left: string | number, right: string | number): number
Basic sort comparator.

splitIntoChunks(array: T[], chunkSize: number = 25): T[][]
Split an array into chunks.

Async

cors(data: any, statusCode = 200, options?: CorsOptions)
Returns an object with body, headers and statusCode.

Type Definition

type HttpMethods = 'GET' | 'POST' | 'PATCH' | 'PUT' | 'DELETE';

interface CorsOptions {
  headers?: string[];
  methods?: HttpMethods[];
  origin?: string;
}

interface CorsOuput {
  body: string;
  headers: PlainObject;
  statusCode: number;
}

poll(condition: () => boolean, options?: PollOptions): Promise<void>
Awaits for the condition to be true based on the options.

Type Definition

interface PollOptions {
  delay?: number; // 1 (seconds)
  maxRetries?: number; // 5 (seconds)
}

request<D = any>(url: string, options?: RequestOptions): Promise<D>
Perform an async request.

Type Definition

type HttpMethods = 'GET' | 'POST' | 'PATCH' | 'PUT' | 'DELETE';

interface RequestOptions {
  body?: any;
  headers?: PlainObject;
  method?: HttpMethods;
}

sleep(seconds?: number = 1): Promise<void>
Block async execution for X seconds.

Date

isoDate(input?: string | number): string
Returns an ISO date.

now(): number
Returns a unix timestamp (seconds since 1970-01-01 00:00 UTC).

timeSince(input: Date | string | number, options?: TimeSinceOptions): string
Returns how much time has passed since the input date.
You can change the locale with the options.

If the plural form just adds an s to the end, you don't need to pass it. It will add it automatically.

Type Definition

interface TimeSinceOptions {
  day?: string; // day
  days?: string;
  hour?: string; // hour
  hours?: string;
  minute?: string; // minute
  minutes?: string;
  month?: string; // month
  months?: string;
  prefix?: string;
  second?: string; // second
  seconds?: string;
  skipWeeks?: boolean; // true
  suffix?: string; // ago
  week?: string; // week
  weeks?: string;
  year?: string; // year
  years?: string;
}

Example

timeSince(twoDaysAgo) // 2 days ago
timeSince(twoWeeksAgo, { skipWeeks: true }) // 14 days ago
timeSince(twoDaysAgo, { day: 'Tag', days: 'Tage', prefix: 'Vor', suffix:'' }) // Vor 2 Tage
timeSince(twoWeeeksAgo, { suffix: 'atrás', week: 'semana' }) // 2 semanas atrás

timestamp(input?: Date | string): number
Get the timestamp for a date

Misc

copyToClipboard(input: string): Promise<boolean>
Copy a string to the clipboard.

isJSON(input: string): boolean
Check if a string is a valid JSON.

isRequired(input?: string = 'parameter', type: Constructable = TypeError): void
Throws an error of the Constructable type.

Example

function exec(input: string = isRequired('input')) {}
exec() // Throws an TypeError with '"input" is required'

function evaluate(input: string = isRequired('input', SyntaxError)) {}
exec() // Throws an SyntaxError with '"input" is required'

logger(type: string, title: string, data: any, options?: LoggerOptions): void
Log grouped messages to the console.

Type Definition

interface LoggerOptions {
  collapsed?: boolean; // true
  hideTimestamp?: boolean; // false
  skip?: boolean; // false
  typeColor?: string; // 'gray'
}

noop(): void
An empty function that does nothing.

nullify<T>(value: T): T | null
Returns the value or null.

popupCenter(url: string, title: string, width: number, height: number): Window | null
Open a centered popup window and returns it.

unique(length?: number = 8, options?: UniqueOptions): string
Returns a random string.

Type Definition

interface UniqueOptions {
  includeLowercase?: boolean; // true
  includeNumbers?: boolean; // true
  includeSymbols?: boolean; // false
  includeUppercase?: boolean; // true
}

uuid(): string
Returns an UUID v4 string.

Numbers

ceil(input: number, digits?: number = 2): number
Ceil decimal numbers.

floor(input: number, digits?: number = 2): number
Floor decimal numbers.

pad(input: number, digits?: number = 2): string
Pad a number with zeros.

randomInt(min?: number = 0, max?: number = 10): number
Returns a random integer.

rangeLimit(value: number, min?: number = 0, max?: number = 100): number
Limit number between range.

round(input: number, digits?: number = 2): number
Round decimal numbers.

Objects

cleanUpObject(input: PlainObject): PlainObject
Remove properties with undefined or empty string value from an object

getNestedProperty(input: PlainObject | any[], path: string): any
Get a nested property inside an object or array.

Example

getNestedProperty({ children: { letters: ['a', 'b', 'c'] } }, 'children.letters');
// returns ['a', 'b', 'c']
getNestedProperty({ children: { letters: ['a', 'b', 'c'] } }, 'children.letters.1');
// returns 'b'
getNestedProperty([{ a: 5 }, { a: 7 }, { a: 10 }], '0.a');
// returns 5

You may also use a wildcard (+) to get multiple array values:

getNestedProperty([{ a: 5 }, { a: 7 }, { a: 10 }], '+.a');
// returns [5, 7, 10]
getNestedProperty({ children: [{ a: 5 }, { a: 7 }, { a: 10 }] }, 'children.+.a');
// returns [5, 7, 10]

invertKeys(input: PlainObject): PlainObject
Invert object key and value.

keyMirror(input: PlainObject): PlainObject
Set the key as the value.

objectToArray(input: PlainObject, includeOnly?: string): PlainObject[]
Convert an object to an array of objects.

omit<T extends PlainObject, K extends keyof T>(input: T, ...filter: K[]): PlainObject
Remove properties from an object.

pick<T extends PlainObject, K extends keyof T>(input: T, ...filter: K[]): PlainObject
Select properties from an object.

queryStringFormat(input: PlainObject, options?: QueryStringFormatOptions): string
Stringify a shallow object into a query string.

Type Definition

interface QueryStringFormatOptions {
  addPrefix?: boolean;
  encodeValuesOnly?: boolean;
  encoder?: (uri: string) => string;
}

queryStringParse(input: string): PlainObject
Parse a query string.

sortObjectKeys(input: PlainObject): PlainObject
Sort object keys

Strings

capitalize(input: string): string
Capitalize the first letter.

cleanupHTML(input: string): string
Cleanup HTML content.

cleanupURI(input: string): string
Cleanup URI characters.

getInitials(input: string): string
Get initials from name

pluralize(singular: string, plural: string | undefined, quantity: number): string
Returns the singular or plural based on the quantity.

If the plural form just adds an s to the end, you don't need to pass it. It will add it automatically.

removeAccents(input: string): string
Remove accents.

removeEmojis(input: string): string
Remove emojis.

removeEmptyTags(input: string): string
Remove empty HTML Tags (including whitespace).

removeNonPrintableCharacters(input: string): string
Remove non-printable ASCII characters.

removeTags(input: string): string
Remove HTML tags.

removeWhitespace(input: string): string
Remove whitespace.

slugify(input: string): string
Format string to slug.