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16 lines
679 B
16 lines
679 B
7 years ago
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// Does not handle negative binary numbers.
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function binToInt(binary) {
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let res = 0;
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for (let i = 0; i < binary.length; i++) {
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res = res * 2 + (+binary[i]);
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}
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return res;
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}
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console.log(binToInt('0') === parseInt('0', 2) && parseInt('0', 2) === 0);
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console.log(binToInt('1') === parseInt('1', 2) && parseInt('1', 2) === 1);
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console.log(binToInt('10') === parseInt('10', 2) && parseInt('10', 2) === 2);
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console.log(binToInt('11') === parseInt('11', 2) && parseInt('11', 2) === 3);
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console.log(binToInt('101') === parseInt('101', 2) && parseInt('101', 2) === 5);
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console.log(binToInt('1100011') === parseInt('1100011', 2) && parseInt('1100011', 2) === 99);
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