commit

src/tool/domTurnImg.js

@@ -0,0 +1,24 @@
+import html2canvas from "html2canvas";
+const getJpeg = dom =>{
+	return new Promise(resolve =>{
+		html2canvas(dom,{useCORS: true,}).then(canvas =>{
+			const jpeg = canvas.toDataURL('image/jpeg',1.0);
+			resolve(base64ToFile(jpeg))
+			console.log(jpeg);
+		})
+	})
+}
+const base64ToFile = urlData =>{
+	const arr = urlData.split(',');
+	const mime = arr[0].match(/:(.*?);/)[1]
+	const bytes = atob(arr[1])
+	let n = bytes.length;
+	const ia = new Uint8Array(n)
+	while (n--){
+		ia[n] = bytes.charCodeAt(n);
+	}
+	console.log(new File([ia],'jpeg',{type:mime}));
+	return new File([ia],'jpeg',{type:mime})
+
+}
+export default getJpeg