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What is JSON and why would I use it?
...by Douglas Crockford), it has been the preferred format because it is much more lightweight
You can find a lot more info on the official JSON web site.
JSON is built on two structures:
A collection of name/value pairs. In various languages, this is realized as an object, record, struct, dictiona...
Template default arguments
...ee asked themselves the same, I guess. Now, with C++17, the <> is no more necessary in this case. Check out my answer for more details.
– Paolo M
Jun 21 '18 at 14:27
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Make .git directory web inaccessible
...
This is a pain if you have more than one .git directory, and must be re-done if you ever re-clone the directory.
– Bennett McElwee
Jul 29 '13 at 5:10
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Replace one substring for another string in shell script
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How do I close a single buffer (out of many) in Vim?
...word of caution: "the w in bw does not stand for write but for wipeout!"
More from manuals:
:bd
Unload buffer [N] (default: current
buffer) and delete it from
the buffer list. If the buffer was changed, this fails,
unless when [!] is specified, in which ...
Bash command to sum a column of numbers [duplicate]
...; | paste -sd+ | bc
Edit:
With some paste implementations you need to be more explicit when reading from stdin:
<cmd> | paste -sd+ - | bc
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git: How do I get the latest version of my code?
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236
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Compare if BigDecimal is greater than zero
...n for compareTo actually specifies that it will return -1, 0 or 1, but the more general Comparable<T>.compareTo method only guarantees less than zero, zero, or greater than zero for the appropriate three cases - so I typically just stick to that comparison.
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Difference between static memory allocation and dynamic memory allocation
... application to crash, since at some point of time, system cannot allocate more memory.
int* func() {
int* mem = malloc(1024);
return mem;
}
int* mem = func(); /* still accessible */
In the upper example, the allocated memory is still valid and accessible, even though the function termin...
How to convert a factor to integer\numeric without loss of information?
...l numeric
values, as.numeric(levels(f))[f] is
recommended and slightly more
efficient than
as.numeric(as.character(f)).
The FAQ on R has similar advice.
Why is as.numeric(levels(f))[f] more efficent than as.numeric(as.character(f))?
as.numeric(as.character(f)) is effectively as.numeric...