Helper Class for Convert PNG to Canvas and Canvas to JPEG

js

class ImageConversor{
	constructor(){

	}

	static convertImageToCanvas(base64){

		let image = new Image();
		image.src = base64;
		let canvas = document.createElement("canvas");
		canvas.width = image.width;
		canvas.height = image.height;
		canvas.getContext("2d").fillStyle = '#fff';  /// set white fill style
		canvas.getContext("2d").fillRect(0, 0, canvas.width, canvas.height);
		canvas.getContext("2d").drawImage(image, 0, 0);
		return canvas;
	}

	static convertCanvasToImage(canvas) {
		let image = new Image();
		image.src = canvas.toDataURL("image/jpeg");
		return image.src;
	}

	static hexToBase64(str) {
        return btoa(String.fromCharCode.apply(null, str.replace(/\r|\n/g, "").replace(/([\da-fA-F]{2}) ?/g, "0x$1 ").replace(/ +$/, "").split(" ")));
    }
}

export default ImageConversor;