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Given 3 morse code characters determines the letter associated with it. Any of the morse can be substituted for ? and this code will respond with possibilities
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function possibilities (signals) { | |
var atoms = { | |
".": "E", | |
"-": "T", | |
"I": { | |
".": "S", | |
"-": "U" | |
}, | |
"A": { | |
".": "R", | |
"-": "W" | |
}, | |
"N": { | |
".": "D", | |
"-": "K" | |
}, | |
"M": { | |
".": "G", | |
"-": "O" | |
}, | |
"E": { | |
".": "I", | |
"-": "A" | |
}, | |
"T": { | |
".": "N", | |
"-": "M" | |
} | |
}; | |
var chain = []; | |
var tmp; | |
signals = signals.split(''); | |
for (var i in signals) { | |
var s = signals[i]; | |
if (i == 0) { | |
if (s === '?') { | |
chain.push(atoms['.']); | |
chain.push(atoms['-']) | |
} else { | |
chain.push(atoms[s]) | |
} | |
} else { | |
tmp = chain.reduce((acc, l) => { | |
if (s === '?') { | |
acc.push(atoms[l]['-']) | |
acc.push(atoms[l]['.']) | |
} else { | |
acc.push(atoms[l][s]); | |
} | |
return acc; | |
}, []) | |
chain = tmp; | |
} | |
} | |
return chain; | |
} |
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