The main difference is in the flow of how messages are ultimately sent to devices for output. The standard library Logger logic converts the log entries to strings and then sends the string to the device to be written to a stream. Lumberjack, on the other hand, sends structured data in the form of a Lumberjack::LogEntry to the device and lets the device worry about how to format it. The reason for this flip is to better support structured data logging. Devices (even ones that write to streams) can format the entire payload including non-string objects and tags however they need to.

Programming to an interface means that when you are presented with some programming interface (be it a class library, a set of functions, a network protocol or anything else) that you keep to using only things guaranteed by the interface. You may have knowledge about the underlying implementation (you may have written it), but you should not ever use that knowledge.

In addition, this example shows usage of the isPressed value returned by useButton to properly style the button's active state. You could use the CSS :active pseudo class for this, but isPressed properly handles when the user drags their pointer off of the button, along with keyboard support and better touch screen support.

However, this would lead to further divergence. Tooling that is built around the assumptions imposed by template literals wouldn't work. It would undermine the meaning of template literals. It would be necessary to define how JSX behaves within the rest of the ECMAScript grammar within the template literal anyway.

Why not just use that instead of inventing a syntax that's not part of ECMAScript?

The problem is that opting out of mime type negotiation simply because there is a catch-all in there is wrong according to the specifications of HTTP.

Some variety of markdown support the following syntax, but not supported in Hugo/BlackFriday. [Lua Software](http://www.luasoftware.com){:target="_blank"}

[link](url){:target="_blank"} Works for jekyll or more specifically kramdown, which is a superset of markdown, as part of Jekyll's (default) configuration. But not for plain markdown. ^_^

For ghost markdown use: [Google](https://google.com" target="_blank) Found it here: https://cmatskas.com/open-external-links-in-a-new-window-ghost/

Rails also adds a test method that takes a test name and a block. It generates a normal Minitest::Unit test with method names prefixed with test_. So you don't have to worry about naming the methods, and you can write something like:

enquo() uses some dark magic to look at the argument, see what the user typed, and return that value as a quosure