alekstar79

const caps = Array.from('ABCDEFGHIJKLMNOPQRSTUVWXYZ'),
    lower = Array.from('abcdefghijklmnopqrstuvwxyz'),
    numbers = Array.from('0123456789')

export function symbols(set = 'all')
{
    return set === 'all' ? Array.from([...caps,...lower,...numbers]) : Array.from({ caps, lower, numbers }[set])
}

export function rndstring(length = 7, signs = 'all')

alekstar79

/**
 * @param {String} data
 * @return {{data: String|null, type: String|null}}
 */
export function dataURLMime(data)
{
    const decompose = { type: null, data: null },
        regexp = /data:(image\/.+);base64,/

    decompose.data = data.replace(regexp, (h, t) => {

alekstar79

function getUserAgent({ brands = [] })
{
    let agent

    test: for (const { brand, version } of brands) switch (true) {
        case ['Chromium','Google Chrome','CriOS'].includes(brand):
            agent = `Chrome/${version}`
            break

        case ['Firefox'].includes(brand):

alekstar79

/**
* @param {Function} job
* @return {function(*=): Promise<unknown>}
*/
export function workerInit(job)
{
    const url = window.URL.createObjectURL(new Blob(
        [`"use strict";\nself.onmessage = ${job.toString()}`],
        { type: 'text/javascript' }
    ))

alekstar79

/**
 * @param {Function} fn
 * @return {Function}
 */
export function createCachedFunction(fn)
{
    const handler = {
        cache: {},

        apply(target, that, args)

alekstar79

/** @see https://gist.github.com/alekstar79/11125248f8dc609f5c8dcba3e0f75b5e */
import { createCachedFunction } from './cached.mjs'

/** @see https://gist.github.com/alekstar79/042a211b62203f1439f2012ce6aa9f55 */
import { workerInit } from './worker.mjs'

/**
 * @param {function} worker
 * @return {function(*=): Promise<unknown>}
 * @example

alekstar79

const h2sl = (hex, isString) => {
  // Convert hex to RGB first
  let r = 0, g = 0, b = 0
  
  if (hex.length == 4) {
    r = "0x" + hex[1] + hex[1]
    g = "0x" + hex[2] + hex[2]
    b = "0x" + hex[3] + hex[3]
  } else if (hex.length == 7) {
    r = "0x" + hex[1] + hex[2]

alekstar79

function pipe(...fn) {
  return function piped(...args) {
    return fn.reduce((result, f) => [f.call(this, ...result)], args)[0]
  }
}

alekstar79

function pick(obj, keys) {
  return keys.reduce((acc, key) => {
    if (obj.hasOwnProperty(key)) {
      acc[key] = obj[key]
    }
    
    return acc
  }, {})
}

alekstar79

function omit(obj, keys) {
  return Object.keys(obj)
    .filter(key => !keys.includes(key))
    .reduce((acc, key) => {
      acc[key] = obj[key]
    
      return acc
    }, {})
}