JSFiddle - React, Tailwind, and code Playground
HTML
<a href="javascript:doIt()">shift 25 pixels to the left using `translate`</a><br>
<a href="javascript:shiftImage()">shift 25 pixels to the left using `getImageData/putImageData`</a><br>
<canvas id="canvas" width="600" height="200"></canvas>
CSS
body {
background-color: #CCC;
}
JavaScript
var canvas = document.getElementById( "canvas" ),
ctx = canvas.getContext( "2d" );
var xOff = 0;
var redraw = function() {
ctx.clearRect(0, 0, 600, 200);
ctx.save();
ctx.translate(xOff, 0);
ctx.font = "100px Arial";
ctx.fillText( "Google", 20, 130 );
ctx.restore();
};
window.doIt = function() {
xOff -= 25;
redraw();
}
redraw();
var shiftContext = function(ctx, w, h, dx, dy) {
var clamp = function(high, value) { return Math.max(0, Math.min(high, value)); };
var imageData = ctx.getImageData(clamp(w, -dx), clamp(h, -dy), clamp(w, w-dx), clamp(h, h-dy));
ctx.clearRect(0, 0, w, h);
ctx.putImageData(imageData, 0, 0);
}
window.shiftImage = function() {
shiftContext(ctx, 600, 200, -25, 0);
}