// 十进制转二进制
const decimalToBinary = num => {
const list = [];
let curr = num;
while (curr > 0) {
list.unshift(curr % 2);
curr = Math.floor(curr/2);
}
return Number(list.join(''));
}
// 二进制转十进制
const binaryToDecimal = num => {
let count = 0;
return num.split('').reverse().reduce((prev, curr) => {
const el = curr * Math.pow(2, count++);
return prev + el;
}, 0)
}
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