Tamio Honma IOIO72

## Group by label property
// Get an array of all labels with unique entries.
const uniqueLabels = [...new Set(apps.map(item => item.label))];

// Transform the original array of objects to an array of label groups.
const groupedApps = uniqueLabels.map(label => ({ label, stores: apps.filter(app => app.label.includes(label)) }));

## rgb2hex.ts
// prepend a character to a string for a given result string length
const prependCharToLength = (str: string, char: string = '0', len: number = 2): string => {
    let r: string[] = [];
    let s: string[] = str.split('');
    for (let i: number = len - 1; i >= 0; i--) {
        r[i] = (s.length - i > 0) ? s[i] : char;
    }
    return r.join('');
};

## gist:933cf59baeb4a8f2e464b8d336cce49e
Verifying my Blockstack ID is secured with the address 1Nu8r4xtC7uBYri355emFongdcF96RBiGh https://explorer.blockstack.org/address/1Nu8r4xtC7uBYri355emFongdcF96RBiGh

## convertUmlauts.js
export const convertUmlauts = str => {
  const charMap = {
    'ä': 'ae',
    'ö': 'oe',
    'ü': 'ue',
    'Ä': 'Ae',
    'Ö': 'Oe',
    'Ü': 'Ue',
    'ß': 'ss'
  };

## isValidDate.js
export const isValidDate = d => d instanceof Date && !isNaN(d);

## .htaccess
RewriteEngine On
RewriteCond %{TIME} <20190319010000
RewriteRule ^agb\.html$ /legal/beta [R=302,L]

## .htaccess
RewriteEngine On
RewriteCond %{REQUEST_FILENAME} /.*\.html
RewriteRule ^(.*)\.html$ /$1 [R=301,L]

## removeSymbolPrefix
const removeSymbolPrefix = str => /^([^a-z]*)(.*)$/gi.exec(str)[2] || str;

## normalizeURIComponentName
const normalizeURIComponentName = str => {
  const stripChars = /[^a-z-\s]/gi;
  return (
    str.toLowerCase().replace(stripChars, '').replace(/\s/gi, '-') || str
  );
};

## getKeyValueSafely
const getKeyValueSafely = (obj, key) => (
  obj.hasOwnProperty(key) ? obj[key] : undefined
);