Reverse the string, so we can start converting bits one by one. Use Array.reduce to keep track of the sum and each iteration add (current bit * 2index).
Array.reduce
const calculateDecimal = binaryString => { return [...binaryString].reverse().reduce((sum, bit, i) => sum + (bit * Math.pow(2, i)), 0); };
Nice implementation. Just one thing. The app idea challenge was not store the binary value in the array :) I forget to mention it :)
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Reverse the string, so we can start converting bits one by one.
Use
Array.reduce
to keep track of the sum and each iteration add (current bit * 2index).Nice implementation. Just one thing. The app idea challenge was not store the binary value in the array :) I forget to mention it :)