Created
September 15, 2017 03:48
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Javascript Magic Function
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function isNumeric(n) { | |
return !isNaN(parseFloat(n)) && isFinite(n); | |
} | |
function MagicFunction(...numbers) { | |
let cache = numbers; | |
function magicFunction(...numbers) { | |
cache = cache.concat(numbers); | |
return magicFunction; | |
} | |
magicFunction.valueOf = () => { | |
cache = cache.map(n => { | |
let original = n; | |
if (Array.isArray(n)) n = 0; | |
let parsedN = parseFloat(n, 10); | |
let result = isNaN(parsedN) ? 0 : parsedN; | |
if ((typeof(original) === 'boolean' || typeof(original) === 'object') && original == true) result = 1; | |
return result; | |
}); | |
let result = cache.reduce((value, memo) => { return value + memo; }, 0); | |
return result; | |
} | |
return magicFunction; | |
} |
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Interesting and helpful for learning. Thanks!