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

Author: mrmagic2020

Ciphers/MorseCode.js

@@ -0,0 +1,85 @@
+/**
+ * @author mrmagic2020
+ * @description Enciphers a combination of letters, numbers and symbols into morse code.
+ * @see https://en.wikipedia.org/wiki/Morse_code
+ * @param {string} msg The message to be enciphered.
+ * @param {string} dot Symbol representing the dots.
+ * @param {string} dash Symbol representing the dash.
+ * @returns {string} Enciphered morse code.
+ * @example morse('Hello World!') = '**** * *-** *-** --- *-- --- *-* *-** -** -*-*--'
+ */
+const morse = (msg, dot = '*', dash = '-') => {
+ const key = {
+ A: '*-',
+ B: '-***',
+ C: '-*-*',
+ D: '-**',
+ E: '*',
+ F: '**-*',
+ G: '--*',
+ H: '****',
+ I: '**',
+ J: '*---',
+ K: '-*-',
+ L: '*-**',
+ M: '--',
+ N: '-*',
+ O: '---',
+ P: '*--*',
+ Q: '--*-',
+ R: '*-*',
+ S: '***',
+ T: '-',
+ U: '**-',
+ V: '***-',
+ W: '*--',
+ X: '-**-',
+ Y: '-*--',
+ Z: '--**',
+ 1: '*----',
+ 2: '**---',
+ 3: '***--',
+ 4: '****-',
+ 5: '*****',
+ 6: '-****',
+ 7: '--***',
+ 8: '---**',
+ 9: '----*',
+ 0: '-----',
+ '.': '*-*-*-',
+ ',': '--**--',
+ '?': '**--**',
+ '!': '-*-*--',
+ '\'': '*----*',
+ '"': '*-**-*',
+ '(': '-*--*',
+ ')': '-*--*-',
+ '&': '*-***',
+ ':': '---***',
+ ';': '-*-*-*',
+ '/': '-**-*',
+ _: '**--*-',
+ '=': '-***-',
+ '+': '*-*-*',
+ '-': '-****-',
+ $: '***-**-',
+ '@': '*--*-*'
+ }
+
+ let newMsg = ''
+
+ msg.toString().split('').forEach((e) => {
+ if (/[a-zA-Z]/.test(e)) {
+ newMsg += key[e.toUpperCase()].replaceAll('*', dot).replaceAll('-', dash)
+ } else if (Object.keys(key).includes(e)) {
+ newMsg += key[e].replaceAll('*', dot).replaceAll('-', dash)
+ } else {
+ newMsg += e
+ }
+ newMsg += ' '
+ })
+
+ return newMsg.trim()
+}
+
+export { morse }

Ciphers/test/MorseCode.test.js

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