When you can touch-type, it's better to have keys spread to use separate fingers. That way, you divide up the work. You have one finger still lifting while the other's already starting the next press.
Usually for speed and avoiding strain you want to incorporate as many fingers as possible. In fact it's a common mark against dvorak online that "ls -l" is all typed with the right pinky (not an issue in the workman layout luckily).
Also remember this was typed with typewriters. That gives its own set of constraints. It's quicker to type two different characters than the same character twice in a row, as you need to wait for the typebar to return enough.
"loop" can all be typed with one finger, as the letters are all together on the qwerty keyboard, and the "o" repeats itself.
"while" on qwerty is sort of a chore.
When you can touch-type, it's better to have keys spread to use separate fingers. That way, you divide up the work. You have one finger still lifting while the other's already starting the next press.
Usually for speed and avoiding strain you want to incorporate as many fingers as possible. In fact it's a common mark against dvorak online that "ls -l" is all typed with the right pinky (not an issue in the workman layout luckily).
Also remember this was typed with typewriters. That gives its own set of constraints. It's quicker to type two different characters than the same character twice in a row, as you need to wait for the typebar to return enough.
Using more fingers allows for faster typing.
w TAB in a properly configured emacs
Yes, otherwise is more natural but less terse.
We often write "otherwise" in mathematics:
https://arxiv.org/html/1501.05438v2#:~:text=otherwise,-%2C
https://arxiv.org/html/1302.5008v3#:~:text=otherwise
https://arxiv.org/html/1501.05438v2#:~:text=otherwise,-%2E
In fact, I think that's the most common alternative, not "else".
"or else" works too but that's still three extra characters
I'm writing some Crystal (which has Ruby-like syntax) and I'd add `unless` to the list. I like it!
"Unless" feels like adding come-from (next to goto) to a language. A statement/flow should not change its meaning after being declared/written IMHO.
edit: My criticism is for the suffix version to be clear. Unless / else is actually cool.
`destroy_world() if $angry;` is Perl syntax. And Python has `destroy_word() if angry else live_long_and_prosper()`.
(But it's not remotely like come-from.)
P.S. in re the other response, "unless" is "if not". "until" is "while not".
wdym? "unless" is literally "while not", no come-from mechanics
“unless” is “if not” — it is not generally looping construct.
`unless` came from Perl, Ruby adopted it, and so of course did Crystal.
”unless” already existed in early Lisps in the 1970s…