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What's the purpose of using braces (i.e. {}) for a single-line if or loop?
...d) (b*b) - ((4*a)*c)?
Some precedences are obvious (or should be), and the extra parentheses
just add to confusion. (On the other hand, you _should_ use the
parentheses in less obvious cases, even if you know that they're not
needed.)
Sort of. There are two wide spread conventions for formatting...
How can I combine flexbox and vertical scroll in a full-height app?
... to zero rather than min-content) and they'll suddenly get squished by the extra-tall <article> element.)
You can simplify the <article> flex too - just set flex: 1; and you'll be good to go. Try to stick with the common values in https://drafts.csswg.org/css-flexbox/#flex-common unless...
Ruby max integer
...
@Matthias An extra bit is used to mark the value as an integer (as opposed to a pointer to an object).
– Matthew Crumley
Mar 8 '12 at 18:53
...
What's wrong with foreign keys?
...documented
Reasons not to use Foreign Keys:
you are making the DB work extra on every CRUD operation because it has to check FK consistency. This can be a big cost if you have a lot of churn
by enforcing relationships, FKs specify an order in which you have to add/delete things, which can lead ...
What does “not run” mean in R help pages?
...run{} for text that should only be shown, but not run, and \dontshow{} for extra commands for testing that should not be shown to users, but will be run by example()
When you build a package then all code in \dontrun{} closure is visible in help as
## Not run:
...
## End(**Not run**)
edit: Thi...
What are the key differences between Apache Thrift, Google Protocol Buffers, MessagePack, ASN.1 and
...lds by numbers, and it is never an error at the library level if there are extra fields, and missing fields are not an error if they are marked optional or explicit. Thus all protocol buffers messages have EXTENSIBILITY IMPLIED.
– Kevin Cathcart
Apr 10 '12 at 1...
How to use sed to replace only the first occurrence in a file?
...o' with 'bar' in the first matching line only.
Due to use of ANSI C-quoted strings ($'...') to provide the sample input lines, bash, ksh, or zsh is assumed as the shell.
GNU sed only:
Ben Hoffstein's anwswer shows us that GNU provides an extension to the POSIX specification for sed that allows th...
How can I plot with 2 different y-axes?
...otrix package automates this process, as does doubleYScale() in the latticeExtra package.
Another example (adapted from an R mailing list post by Robert W. Baer):
## set up some fake test data
time <- seq(0,72,12)
betagal.abs <- c(0.05,0.18,0.25,0.31,0.32,0.34,0.35)
cell.density <- c(0,10...
How to send commands when opening a tmux session inside another tmux session?
...It works for me with 1.7, 1.6, and 1.5. You will definitely need to add an extra level of quoting if you are making the binding from a shell command (i.e. tmux bind-key -n 'C-\' send-prefix); if you are having problems getting it to work from ~/.tmux.conf (or a Prefix : command line), then you might...
Bold words in a string of strings.xml in Android
I have a long text in one of the strings at strings.xml. I want to make bold and change the color of some words in that text.
...