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AfterThreeYears/二进制转十进制

Created September 22, 2018 09:17
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数学
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二进制转十进制
// 二进制转十进制
(1111111).toString(2).split('').reverse().reduce((r, c, i) => {
r += Math.pow(2, i) * c;
return r;
}, 0);
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