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How to detect if a specific file exists in Vimscript?
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138
With a bit of searching in vim man I've found this, which looks much better that the original:...
How can I check if a command exists in a shell script? [duplicate]
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edited Mar 25 '18 at 21:59
answered Sep 22 '11 at 23:59
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What's the idiomatic syntax for prepending to a short python list?
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819
The s.insert(0, x) form is the most common.
Whenever you see it though, it may be time to cons...
PHP - Extracting a property from an array of objects
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10 Answers
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Why does “return list.sort()” return None, not the list?
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answered Sep 4 '11 at 18:00
Ismail BadawiIsmail Badawi
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What is the best way to use a HashMap in C++?
...st an implementation detail. In an unordered map insert and access is in O(1). It is just another name for a hashtable.
An example with (ordered) std::map:
#include <map>
#include <iostream>
#include <cassert>
int main(int argc, char **argv)
{
std::map<std::string, int> ...
Selecting the last value of a column
...xRows();
var values = SpreadsheetApp.getActiveSheet().getRange(column + "1:" + column + lastRow).getValues();
for (; values[lastRow - 1] == "" && lastRow > 0; lastRow--) {}
return values[lastRow - 1];
}
Usage:
=lastValue("G")
EDIT:
In response to the comment asking for the fu...
Why is it OK to return a 'vector' from a function?
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answered Mar 26 '14 at 8:22
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Cannot pass null argument when using type hinting
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PHP 7.1 or newer (released 2nd December 2016)
You can explicitly declare a variable to be null with this syntax
function foo(?Type $t) {
}
this will result in
$this->foo(new Type()); // ok
$this->foo(null); // ok
$this-&...
In Hibernate Validator 4.1+, what is the difference between @NotNull, @NotEmpty, and @NotBlank?
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319
@NotNull: The CharSequence, Collection, Map or Array object is not null, but can be empty.
@Not...