jschan - Anonymous imageboard software. Classic look, modern features and feel. Works without JavaScript and supports Tor, I2P, Lokinet, etc.
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'use strict';
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module.exports = (hex) => {
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const r = parseInt(hex.substr(0,2), 16);
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const g = parseInt(hex.substr(2,2), 16);
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const b = parseInt(hex.substr(4,2), 16)
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return 0.375 * r + 0.5 * g + 0.125 * b;
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}
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