181 lines
8.5 KiB
TypeScript
181 lines
8.5 KiB
TypeScript
export function countChars(text: string, pattern: RegExp) {
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return text.length - text.replaceAll(pattern, '').length;
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}
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export function createHex(length: number) {
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return Array(length).fill(null).map(() => Math.round(Math.random() * 0xF).toString(16)).join('');
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}
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export function formatBytes(bytes: number, decimals = 2) {
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if (bytes === 0) return '0 Bytes';
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const k = 1024;
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const sizes = ['Bytes', 'KB', 'MB', 'GB', 'TB', 'PB', 'EB', 'ZB', 'YB'];
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const i = Math.floor(Math.log(bytes) / Math.log(k));
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return parseFloat((bytes / Math.pow(k, i)).toFixed(decimals)) + ' ' + sizes[i];
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}
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/**
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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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export function pad(text: any, length: number, char: string, start = true) {
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const t = text.toString();
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const l = length - t.length;
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if(l <= 0) return t;
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const padding = Array(~~(l / char.length)).fill(char).join('');
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return start ? padding + t : t + padding;
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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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* Create MD5 hash using native javascript
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* @param d String to hash
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* @returns {string} Hashed string
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*/
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export function md5(d: string) {
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var r = M(V(Y(X(d),8*d.length)));return r.toLowerCase()};
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function M(d:any){for(var _,m="0123456789ABCDEF",f="",r=0;r<d.length;r++)_=d.charCodeAt(r),f+=m.charAt(_>>>4&15)+m.charAt(15&_);return f}
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function X(d:any){for(var _=Array(d.length>>2),m=0;m<_.length;m++)_[m]=0;for(m=0;m<8*d.length;m+=8)_[m>>5]|=(255&d.charCodeAt(m/8))<<m%32;return _}
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function V(d:any){for(var _="",m=0;m<32*d.length;m+=8)_+=String.fromCharCode(d[m>>5]>>>m%32&255);return _}
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function Y(d:any,_:any){d[_>>5]|=128<<_%32,d[14+(_+64>>>9<<4)]=_;for(var m=1732584193,f=-271733879,r=-1732584194,i=271733878,n=0;n<d.length;n+=16){var h=m,t=f,g=r,e=i;f=md5_ii(f=md5_ii(f=md5_ii(f=md5_ii(f=md5_hh(f=md5_hh(f=md5_hh(f=md5_hh(f=md5_gg(f=md5_gg(f=md5_gg(f=md5_gg(f=md5_ff(f=md5_ff(f=md5_ff(f=md5_ff(f,r=md5_ff(r,i=md5_ff(i,m=md5_ff(m,f,r,i,d[n+0],7,-680876936),f,r,d[n+1],12,-389564586),m,f,d[n+2],17,606105819),i,m,d[n+3],22,-1044525330),r=md5_ff(r,i=md5_ff(i,m=md5_ff(m,f,r,i,d[n+4],7,-176418897),f,r,d[n+5],12,1200080426),m,f,d[n+6],17,-1473231341),i,m,d[n+7],22,-45705983),r=md5_ff(r,i=md5_ff(i,m=md5_ff(m,f,r,i,d[n+8],7,1770035416),f,r,d[n+9],12,-1958414417),m,f,d[n+10],17,-42063),i,m,d[n+11],22,-1990404162),r=md5_ff(r,i=md5_ff(i,m=md5_ff(m,f,r,i,d[n+12],7,1804603682),f,r,d[n+13],12,-40341101),m,f,d[n+14],17,-1502002290),i,m,d[n+15],22,1236535329),r=md5_gg(r,i=md5_gg(i,m=md5_gg(m,f,r,i,d[n+1],5,-165796510),f,r,d[n+6],9,-1069501632),m,f,d[n+11],14,643717713),i,m,d[n+0],20,-373897302),r=md5_gg(r,i=md5_gg(i,m=md5_gg(m,f,r,i,d[n+5],5,-701558691),f,r,d[n+10],9,38016083),m,f,d[n+15],14,-660478335),i,m,d[n+4],20,-405537848),r=md5_gg(r,i=md5_gg(i,m=md5_gg(m,f,r,i,d[n+9],5,568446438),f,r,d[n+14],9,-1019803690),m,f,d[n+3],14,-187363961),i,m,d[n+8],20,1163531501),r=md5_gg(r,i=md5_gg(i,m=md5_gg(m,f,r,i,d[n+13],5,-1444681467),f,r,d[n+2],9,-51403784),m,f,d[n+7],14,1735328473),i,m,d[n+12],20,-1926607734),r=md5_hh(r,i=md5_hh(i,m=md5_hh(m,f,r,i,d[n+5],4,-378558),f,r,d[n+8],11,-2022574463),m,f,d[n+11],16,1839030562),i,m,d[n+14],23,-35309556),r=md5_hh(r,i=md5_hh(i,m=md5_hh(m,f,r,i,d[n+1],4,-1530992060),f,r,d[n+4],11,1272893353),m,f,d[n+7],16,-155497632),i,m,d[n+10],23,-1094730640),r=md5_hh(r,i=md5_hh(i,m=md5_hh(m,f,r,i,d[n+13],4,681279174),f,r,d[n+0],11,-358537222),m,f,d[n+3],16,-722521979),i,m,d[n+6],23,76029189),r=md5_hh(r,i=md5_hh(i,m=md5_hh(m,f,r,i,d[n+9],4,-640364487),f,r,d[n+12],11,-421815835),m,f,d[n+15],16,530742520),i,m,d[n+2],23,-995338651),r=md5_ii(r,i=md5_ii(i,m=md5_ii(m,f,r,i,d[n+0],6,-198630844),f,r,d[n+7],10,1126891415),m,f,d[n+14],15,-1416354905),i,m,d[n+5],21,-57434055),r=md5_ii(r,i=md5_ii(i,m=md5_ii(m,f,r,i,d[n+12],6,1700485571),f,r,d[n+3],10,-1894986606),m,f,d[n+10],15,-1051523),i,m,d[n+1],21,-2054922799),r=md5_ii(r,i=md5_ii(i,m=md5_ii(m,f,r,i,d[n+8],6,1873313359),f,r,d[n+15],10,-30611744),m,f,d[n+6],15,-1560198380),i,m,d[n+13],21,1309151649),r=md5_ii(r,i=md5_ii(i,m=md5_ii(m,f,r,i,d[n+4],6,-145523070),f,r,d[n+11],10,-1120210379),m,f,d[n+2],15,718787259),i,m,d[n+9],21,-343485551),m=safe_add(m,h),f=safe_add(f,t),r=safe_add(r,g),i=safe_add(i,e)}return Array(m,f,r,i)}
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function md5_cmn(d:any,_:any,m:any,f:any,r:any,i:any){return safe_add(bit_rol(safe_add(safe_add(_,d),safe_add(f,i)),r),m)}
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function md5_ff(d:any,_:any,m:any,f:any,r:any,i:any,n:any){return md5_cmn(_&m|~_&f,d,_,r,i,n)}
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function md5_gg(d:any,_:any,m:any,f:any,r:any,i:any,n:any){return md5_cmn(_&f|m&~f,d,_,r,i,n)}
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function md5_hh(d:any,_:any,m:any,f:any,r:any,i:any,n:any){return md5_cmn(_^m^f,d,_,r,i,n)}
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function md5_ii(d:any,_:any,m:any,f:any,r:any,i:any,n:any){return md5_cmn(m^(_|~f),d,_,r,i,n)}
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function safe_add(d:any,_:any){var m=(65535&d)+(65535&_);return(d>>16)+(_>>16)+(m>>16)<<16|65535&m}
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function bit_rol(d:any,_:any){return d<<_|d>>>32-_
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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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