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console.log(0xFF); // 255 (hex) console.log(0b1010); // 10 (binary) console.log(0o17); // 15 (octal) console.log(1e6); // 1000000 console.log(1.5e-3); // 0.0015 console.log((255).toString(16)); // 'ff' console.log((10).toString(2)); // '1010' console.log((15).toString(8)); // '17' const color = 0xFF5733; console.log(color.toString(16)); // 'ff5733'
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