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BaseConverter
//JavaScript-C24.2.0 (SpiderMonkey) print(convertFromBase("1000101", 2)); function convertFromBase(num, base) { if (!base || base < 2 || (base > 10 && base !== 16)) { return -1; } let value = 0; for (let i = num.length - 1; i >= 0; i--) { let digit = digitToValue(num[i]); if (digit < 0 || digit > base){ return -1; } let exp = num.length - i - 1; value += digit*Math.pow(base, exp); } return value; } function digitToValue(ch) { return ch; }
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