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Commit 331a4d2

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feat: Ciphers/MorseCode Algorithm (TheAlgorithms#1315)
* [feat] New algorithm * [test] Add new test for ParityOutlier.js * [fix] Reset indentation * [fix] Reset indentation * [fix] Style changes * fix: improve code efficiency and a glitch * test: adds a new possible test case * fix: style fix * fix: delete redundant comments and else statements * [fix] style fix * feat: New algorithm * fix: fixed custom code symbols * test: add test for MorseCode * test: add case with custom code symbols * delete files from main branch * fix: style fix * fix: style fix * fix: delete unnecessary quotes
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‎Ciphers/MorseCode.js

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/**
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* @author mrmagic2020
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* @description Enciphers a combination of letters, numbers and symbols into morse code.
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* @see https://en.wikipedia.org/wiki/Morse_code
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* @param {string} msg The message to be enciphered.
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* @param {string} dot Symbol representing the dots.
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* @param {string} dash Symbol representing the dash.
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* @returns {string} Enciphered morse code.
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* @example morse('Hello World!') = '**** * *-** *-** --- *-- --- *-* *-** -** -*-*--'
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*/
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const morse = (msg, dot = '*', dash = '-') => {
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const key = {
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A: '*-',
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B: '-***',
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C: '-*-*',
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D: '-**',
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E: '*',
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F: '**-*',
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G: '--*',
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H: '****',
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I: '**',
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J: '*---',
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K: '-*-',
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L: '*-**',
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M: '--',
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N: '-*',
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O: '---',
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P: '*--*',
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Q: '--*-',
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R: '*-*',
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S: '***',
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T: '-',
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U: '**-',
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V: '***-',
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W: '*--',
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X: '-**-',
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Y: '-*--',
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Z: '--**',
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1: '*----',
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2: '**---',
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3: '***--',
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4: '****-',
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5: '*****',
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6: '-****',
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7: '--***',
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8: '---**',
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9: '----*',
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0: '-----',
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'.': '*-*-*-',
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',': '--**--',
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'?': '**--**',
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'!': '-*-*--',
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'\'': '*----*',
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'"': '*-**-*',
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'(': '-*--*',
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')': '-*--*-',
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'&': '*-***',
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':': '---***',
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';': '-*-*-*',
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'/': '-**-*',
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_: '**--*-',
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'=': '-***-',
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'+': '*-*-*',
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'-': '-****-',
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$: '***-**-',
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'@': '*--*-*'
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}
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let newMsg = ''
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msg.toString().split('').forEach((e) => {
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if (/[a-zA-Z]/.test(e)) {
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newMsg += key[e.toUpperCase()].replaceAll('*', dot).replaceAll('-', dash)
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} else if (Object.keys(key).includes(e)) {
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newMsg += key[e].replaceAll('*', dot).replaceAll('-', dash)
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} else {
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newMsg += e
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}
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newMsg += ' '
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})
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return newMsg.trim()
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}
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export { morse }

‎Ciphers/test/MorseCode.test.js

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import { morse } from '../MorseCode'
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describe('Testing morse function', () => {
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it('should return an enciphered string with a given input string', () => {
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expect(morse('Hello World!')).toBe('**** * *-** *-** --- *-- --- *-* *-** -** -*-*--')
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expect(morse('1+1=2')).toBe('*---- *-*-* *---- -***- **---')
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})
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it('should leave symbols that does not have its corresponding morse representation', () => {
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expect(morse('© 2023 GitHub, Inc.')).toBe('© **--- ----- **--- ***-- --* ** - **** **- -*** --**-- ** -* -*-* *-*-*-')
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})
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it('should be able to accept custom morse code symbols', () => {
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expect(morse('Nodejs', '.', '|')).toBe('|. ||| |.. . .||| ...')
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})
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})

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