JavaScript-将数据库base64字符串转换为图像

Question

I am making a mobile app using PhoneGap and I want to convert data base64 string to a file and save it in the mobile device.

How can I convert data base64 string to image file using JavaScript? Is there any JavaScript library that does this?

Answer 1

You may use Data URLs:

<a href="data:jpg/image;base64,/9j/4AAQSkZJR...." target="_blank">

this also works in img-Tags:

<img src="data:jpg/image;base64,/9j/4AAQSkZJR...." />

To trigger this by pure JavaScript, maybe this could work. The back-end should behave like a DOM browser:

var content = "data:jpg/image;base64,/9j/4AAQSkZJR....";
var window = window.open(content, "Image");
window.focus()