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const BinaryGap = {

solution: function(N) {

let binary = N.toString(2)

binary = binary.replace(/0+$/, '')

longest = 0

strings = binary.match(/0+/g)

if (strings) {

for (const match of strings) {

if (match.length > longest) {

longest = match.length

}

return longest

}

result = BinaryGap.solution(657876)

console.log(`${result}, pass: ${result == 5}`)

result = BinaryGap.solution(8)

console.log(`${result}, pass: ${result == 0}`)

result = BinaryGap.solution(129)

console.log(`${result}, pass: ${result == 6}`)

result = BinaryGap.solution(2147483647)

console.log(`${result}, pass: ${result == 0}`)

result = BinaryGap.solution(2147483646)

console.log(`${result}, pass: ${result == 0}`)

result = BinaryGap.solution(462876534)

console.log(`${result}, pass: ${result == 2}`)

result = BinaryGap.solution(1041)

console.log(`${result}, pass: ${result == 5}`)

// TESTED AND PASSED ON Codility