137 lines
3.9 KiB
TypeScript
137 lines
3.9 KiB
TypeScript
/**
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* String of all letters
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*
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*/
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const LETTER_LIST = 'abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ';
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/**
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* String of all numbers
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*
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*/
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const NUMBER_LIST = '0123456789';
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/**
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* String of all symbols
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*/
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const SYMBOL_LIST = '~`!@#$%^&*()_-+={[}]|\\:;"\'<,>.?/';
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/**
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* String of all letters, numbers & symbols
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*/
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const CHAR_LIST = LETTER_LIST + NUMBER_LIST + SYMBOL_LIST;
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export function formatPhoneNumber(number: string) {
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const parts = /(\+?1)?.*?(\d{3}).*?(\d{3}).*?(\d{4})/g.exec(number);
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if(!parts) throw new Error(`Number cannot be parsed: ${number}`);
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return `${parts[1] ?? ''} (${parts[2]}) ${parts[3]}-${parts[4]}`.trim();
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}
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/**
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* Insert a string into another string at a given position
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*
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* @example
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* ```
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* console.log(insertAt('Hello world!', ' glorious', 5);
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* // Output: Hello glorious world!
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* ```
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*
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* @param {string} target - Parent string you want to modify
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* @param {string} str - Value that will be injected to parent
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* @param {number} index - Position to inject string at
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* @returns {string} - New string
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*/
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export function insertAt(target: string, str: string, index: number): String {
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return `${target.slice(0, index)}${str}${target.slice(index + 1)}`;
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}
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/**
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* Generate a string of random characters.
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*
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* @example
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* ```ts
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* const random = randomString();
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* const randomByte = randomString(8, "01")
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* ```
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*
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* @param {number} length - length of generated string
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* @param {string} pool - character pool to generate string from
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* @return {string} generated string
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*/
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export function randomString(length: number, pool: string = CHAR_LIST): string {
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return Array(length).fill(null).map(() => {
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const n = ~~(Math.random() * pool.length);
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return pool[n];
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}).join('');
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}
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/**
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* Generate a random string with fine control over letters, numbers & symbols
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*
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* @example
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* ```ts
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* const randomLetter = randomString(1, true);
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* const randomChar = randomString(1, true, true, true);
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* ```
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*
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* @param {number} length - length of generated string
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* @param {boolean} letters - Add letters to pool
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* @param {boolean} numbers - Add numbers to pool
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* @param {boolean} symbols - Add symbols to pool
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* @return {string} generated string
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*/
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export function randomStringBuilder(length: number, letters = false, numbers = false, symbols = false): string {
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if(!letters && !numbers && !symbols) throw new Error('Must enable at least one: letters, numbers, symbols');
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return Array(length).fill(null).map(() => {
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let c;
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do {
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const type = ~~(Math.random() * 3);
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if(letters && type == 0) {
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c = LETTER_LIST[~~(Math.random() * LETTER_LIST.length)];
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} else if(numbers && type == 1) {
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c = NUMBER_LIST[~~(Math.random() * NUMBER_LIST.length)];
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} else if(symbols && type == 2) {
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c = SYMBOL_LIST[~~(Math.random() * SYMBOL_LIST.length)];
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}
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} while(!c);
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return c;
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}).join('');
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}
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/**
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* Find all substrings that match a given pattern.
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*
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* Roughly based on `String.prototype.matchAll`.
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*
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* @param {string} value - String to search.
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* @param {RegExp | string} regex - Regular expression to match.
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* @return {RegExpExecArray[]} Found matches.
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*/
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export function matchAll(value: string, regex: RegExp | string): RegExpExecArray[] {
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if(typeof regex === 'string') {
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regex = new RegExp(regex, 'g');
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}
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// https://stackoverflow.com/a/60290199
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if(!regex.global) {
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throw new TypeError('Regular expression must be global.');
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}
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let ret: RegExpExecArray[] = [];
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let match: RegExpExecArray | null;
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while((match = regex.exec(value)) !== null) {
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ret.push(match);
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}
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return ret;
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}
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/**
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* Check if email is valid
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*
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* @param {string} email - Target
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* @returns {boolean} - Follows format
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*/
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export function validateEmail(email: string) {
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return /^[a-zA-Z0-9.!#$%&'*+/=?^_`{|}~-]+@[a-zA-Z0-9-]+(?:\.[a-zA-Z0-9-]+)*$/.test(email);
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}
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