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Home/News/Creating a QR Code Generator with Vanilla JS: No Libraries, 202 Tests

Creating a QR Code Generator with Vanilla JS: No Libraries, 202 Tests

QR codes look like magic โ€” a grid of black and white squares that encodes anything from a URL to a business card. But how do they actually work? I decided to find out the hard way: implement the full QR Code Model 2 algorithm in vanilla JavaScript, zero external dependencies. The result: QR Code Gen

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