The difference between map-set and map-merge? Almost nothing.
When I first heard that Sass 3.3 had no map-set function, I was confused. Why force me to create a map, and then merge it? That sounds like two steps to accomplish one simple task! But that’s not the case. Map-merge is a much more powerful function, and using it to set a key in an existing map is quite straight-forward. In fact, I couldn’t come up with a map-set function that shaved off more than a few keystrokes. Here’s the comparison:
// a map!
$map: (
1: hello,
2: world,
);
// a map-set function (not included with Sass)
@function map-set($map, $key, $value) {
$new: (
$key: $value,
);
@return map-merge($map, $new);
}
// the difference between map-set and map-merge: almost nothing.
$merge: map-merge(
$map,
(
2: New York,
)
);
$set: map-set($map, 2, New York);
OddBird sponsored Python Web Conference 2023 and sent me to attend. In this article I showcase my favorite talks and activities from this excellent online event, including a list of useful resources for web application security, introductions to new PaaS providers, and a comparison of the most popular Python web frameworks.
Learn how to run Playwright in headed mode to interact with the browser’s user interface from outside Docker containers.
What happens if the ‘pace layers’ get out of sync?
Ask not just: How well does it work? But also: How well does it fail? What happens when something goes wrong? —Jeremy Keith