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17 lines
396 B
JavaScript
17 lines
396 B
JavaScript
function RGBToHex (r, g, b) {
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if (
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typeof r !== 'number' ||
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typeof g !== 'number' ||
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typeof b !== 'number'
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) {
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throw new TypeError('argument is not a Number')
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}
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const toHex = n => (n || '0').toString(16).padStart(2, '0')
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return `#${toHex(r)}${toHex(g)}${toHex(b)}`
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}
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console.log(RGBToHex(255, 255, 255) === '#ffffff')
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console.log(RGBToHex(255, 99, 71) === '#ff6347')
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