GeezerVisonThe World Wide Web, restored to 800 pixels of glory. |
| Home|About|Gaming cabinet|Archives|How it works|Starter sites |
GeezerVison is showing github.com — JavaScript/String/MaxCharacter.js at master · TheAlgorithms/JavaScript Expand file tree/ Copy pathMaxCharacter.jsMore file actions 37 lines (31 loc) · 1.01 KB / Copy pathMaxCharacter.jsFile metadata and controls37 lines (31 loc) · 1.01 KB 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 /** * @function maxCharacter * @example - Given a string of characters, return the character that appears the most often. Example: input = "Hello World!" return "l" * @param {string} str * @param {RegExp} ignorePattern - ignore the char in str that is not required * @returns {string} - char */ const maxCharacter = (str, ignorePattern) => { // initially it's count only alphabets if (typeof str !== 'string') { throw new TypeError('Argument should be a string') } else if (!str) { throw new Error('The param should be a nonempty string') } // store all char in occurrence map const occurrenceMap = new Map() for (const char of str) { if (!ignorePattern?.test(char)) { occurrenceMap.set(char, occurrenceMap.get(char) + 1 || 1) } } // find the max char from the occurrence map let max = { char: '', occur: -Infinity } for (const [char, occur] of occurrenceMap) { if (occur > max.occur) { max = { char, occur } } } return max.char } export default maxCharacter |
| You are visitor 01402503 — GeezerVison does not store the pages you look up. Best viewed with Netscape Navigator 4.7 or Internet Explorer 6 at 800×600. No cookies required. |