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Converting numbers to base-7 representation in JavaScript
Like the base−2 representation (binary), where we repeatedly divide the base 10 (decimal) numbers by 2, in the base 7 system we will repeatedly divide the number by 7 to find the binary representation.
We are required to write a JavaScript function that takes in any number and finds its base 7 representation.
For example −
base7(100) = 202
Example
The code for this will be −
const num = 100;
const base7 = (num = 0) => {
let sign = num < 0 && '−' || '';
num = num * (sign + 1);
let result = '';
while (num) {
result = num % 7 + result;
num = num / 7 ^ 0;
};
return sign + result || "0";
};
console.log(base7(num));Output
And the output in the console will be −
202
Updated on: 20-Nov-2020
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