How to convert base64 and Picture in JS

This article will explain in detail how to convert base64 and pictures in JS. The editor thinks it is very practical, so I share it for you as a reference. I hope you can get something after reading this article.

Js converts the picture to base64var img = "imgurl"; / / imgurl is your image path function getBase64Image (img) {var canvas = document.createElement ("canvas"); canvas.width = img.width; canvas.height = img.height; var ctx = canvas.getContext ("2d"); ctx.drawImage (img, 0,0, img.width, img.height) Var ext = img.src.substring (img.src.lastIndexOf (".") + 1). ToLowerCase (); var dataURL = canvas.toDataURL ("image/" + ext); return dataURL;} var image = new Image (); image.src = img; image.onload = function () {var base64 = getBase64Image (image); console.log (base64);} js converts base64 into picture format

Js can directly set the src property of img to the base64 data of the picture.

Document.getElementById ('img'). SetAttribute (' src', _ 'data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAUAAAAFCAYAAACNbyblAAAAHElEQVQI12P4//8/w38GIAXDIBKE0 DHxgljNBAAO9TXL0Y4OHwAAAABJRU5ErkJggg==') as follows:

This is the end of this article on "how to convert base64 and pictures in JS". I hope the above content can be of some help to you, so that you can learn more knowledge. if you think the article is good, please share it for more people to see.