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DecimalToOctal.js

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function decimalToOctal(num) {

let oct = 0

let c = 0

while (num > 0) {

const r = num % 8

oct = oct + r * Math.pow(10, c++)

num = Math.floor(num / 8) // basically /= 8 without remainder if any

}

return oct

}

export { decimalToOctal }

// > decimalToOctal(2)

// 2

// > decimalToOctal(8)

// 10

// > decimalToOctal(65)

// 101

// > decimalToOctal(216)

// 330

// > decimalToOctal(512)

// 1000