No more pesky context.save() and context.restore() - use this handy sandwich function instead!

saveRestore.js

function saveRestore(ctx, func) {
  ctx.save();
  func(ctx);
  ctx.restore();
}

//Usage
saveRestore(context, function (ctx) {
  ctx.fillStyle = 'black';
  ctx.fillRect(0, 0, width, height);
});

//Alternatively define saveRestore with access to context:
function saveRestore(func) {
  MYAPP.ctx.save();
  func(MYAPP.ctx);
  MYAPP.ctx.restore();
}

//Usage
saveRestore(function (ctx) {
  ctx.fillStyle = 'black';
  ctx.fillRect(0, 0, width, height);
});