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const qrText = document.getElementById("qrText");
const generateBtn = document.getElementById("generateBtn");
const downloadBtn = document.getElementById("downloadBtn");
const qrCodeContainer = document.getElementById("qrcode");
let qr;
generateBtn.addEventListener("click", () => {
const text = qrText.value.trim();
if (!text) {
alert("Please enter text or a URL!");
alert
return;
}
// Clear previous QR
qrCodeContainer.innerHTML = "";
// Generate new QR
qr = new QRCode(qrCodeContainer, {
qr
QRCode
/** global: QRCode */
This checks looks for references to variables that have not been declared. This is most likey a typographical error or a variable has been renamed.
To learn more about declaring variables in Javascript, see the MDN.
text: text,
width: 200,
height: 200,
colorDark: "#000000",
colorLight: "#ffffff",
});
// Enable download after generating
setTimeout(() => {
downloadBtn.disabled = false;
}, 300);
downloadBtn.addEventListener("click", () => {
const img = qrCodeContainer.querySelector("img");
const canvas = qrCodeContainer.querySelector("canvas");
if (img && img.src) {
downloadImage(img.src);
} else if (canvas) {
downloadImage(canvas.toDataURL("image/png"));
} else {
alert("Please generate a QR code first!");
function downloadImage(dataUrl) {
const link = document.createElement("a");
link.href = dataUrl;
link.download = "qrcode.png";
document.body.appendChild(link);
link.click();
document.body.removeChild(link);
LCSOGthb /
Tools
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