Mike Grunwald bobdobbalina
bobdobbalina
/ uuid.js
Created
January 20, 2021 19:18
Javascript: Generate a unique universal identifier
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| const UUIDGenerator = () => | |
| ([1e7] + -1e3 + -4e3 + -8e3 + -1e11).replace(/[018]/g, c => | |
| (c ^ (crypto.getRandomValues(new Uint8Array(1))[0] & (15 >> (c / 4)))).toString(16) | |
| ); | |
| UUIDGenerator(); // 82f13078-8479-4060-87ea-1e919e71edfe |
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| const detectDeviceType = () => | |
| /Android|webOS|iPhone|iPad|iPod|BlackBerry|IEMobile|Opera Mini/i.test(navigator.userAgent) | |
| ? 'mobile' | |
| : 'desktop'; | |
| detectDeviceType(); // "mobile" or "desktop" |
bobdobbalina
/ capitalize.js
Last active
January 20, 2021 19:20
Javascript: Capitalize the first letter in a string
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| const capitalize = ([first, ...rest], lowerRest = false) => | |
| first.toUpperCase() + (lowerRest ? rest.join('').toLowerCase() : rest.join('')); | |
| capitalize('JavaScript'); // 'JavaScript ' | |
| capitalize('JavaScript', true); // 'Javascript's |
bobdobbalina
/ digitize.js
Created
January 20, 2021 19:21
Javascript: Convert a number into an array of digits
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| const digitize = n => [...`${n}`].map(i => parseInt(i)); | |
| digitize(691710147); // [6,9,1,7,1,0,1,4,7] |
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| const escapeHTML = str => | |
| str.replace( | |
| /[&<>'"]/g, | |
| tag => | |
| ({ | |
| '&': '&', | |
| '<': '<', | |
| '>': '>', | |
| "'": ''', | |
| '"': '"' |
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| const unescapeHTML = str => | |
| str.replace( | |
| /&|<|>|'|"/g, | |
| tag => | |
| ({ | |
| '&': '&', | |
| '<': '<', | |
| '>': '>', | |
| ''': "'", | |
| '"': '"' |
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| const stripHTMLTags = str => str.replace(/<[^>]*>/g, ''); | |
| stripHTMLTags('<a href="#">Me & you</a>'); |
bobdobbalina
/ nonASCII.js
Created
January 20, 2021 19:25
Javascript: Remove non ASCII characters from strings
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| const removeNonASCII = str => str.replace(/[^\x20-\x7E]/g, ''); | |
| removeNonASCII('äÄçÇéÉêlorem-ipsumöÖÐþúÚ'); // lorem-ipsum |
bobdobbalina
/ nativeType.js
Created
January 20, 2021 19:26
Javascript: Get the native type of any value
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| const nativeType = v => | |
| v === undefined ? 'undefined' : v === null ? 'null' : v.constructor.name.toLowerCase(); | |
| nativeType(new Set([1, 2, 3])); // set |
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| const toCurrency = (n, curr, LanguageFormat = undefined) => | |
| Intl.NumberFormat(LanguageFormat, { style: 'currency', currency: curr }).format(n); | |
| toCurrency(123456.789, 'EUR'); // €123,456.79 | currency: Euro | currencyLangFormat: Local | |
| toCurrency(123456.789, 'USD', 'en-us'); // $123,456.79 | currency: US Dollar | currencyLangFormat: English (United States) | |
| toCurrency(322342436423.2435, 'JPY'); // ¥322,342,436,423 | currency: Japanese Yen | currencyLangFormat: Local | |
| toCurrency(322342436423.2435, 'JPY', 'fi'); // 322 342 436 423 ¥ | currency: Japanese Yen | currencyLangFormat: Finnish |