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What is the difference between 'typedef' and 'using' in C++11?
...ons can, whereas alias declarations cannot, be used as initialization statements
But, with the first two non-template examples, are
there any other subtle differences in the standard?
Differences in semantics: none.
Differences in allowed contexts: some(1).
(1) In addition to the examples of ali...
Sass .scss: Nesting and multiple classes?
...eplacing the &.
This notation is most often used to write pseudo-elements and -classes:
.element{
&:hover{ ... }
&:nth-child(1){ ... }
}
However, you can place the & at virtually any position you like*, so the following is possible too:
.container {
background:red;...
Detecting taps on attributed text in a UITextView in iOS
...answered Oct 12 '13 at 12:47
tarmestarmes
14.8k88 gold badges4949 silver badges8484 bronze badges
...
How do I tell matplotlib that I am done with a plot?
...
The pyplot tutorial does mention clf() in the "multiple figures" section. Note that if you just create a new plot with figure() without closing the old one with close() (even if you close the GUI window), pyplot retains a reference to your old figure...
Implementing two interfaces in a class with same method. Which interface method is overridden?
Two interfaces with same method names and signatures. But implemented by a single class then how the compiler will identify the which method is for which interface?
...
What is better: @SuppressLint or @TargetApi?
...y disables the StrictModeHelper
Please fix the networking bug.
Which method is prefered ..or are they basically doing the same?
@TargetApi and @SuppressLint have the same core effect: they suppress the Lint error.
The difference is that with @TargetApi, you declare, via the parameter, what ...
Piping both stdout and stderr in bash?
...le.)
To combine stdout and stderr you would redirect the latter to the former using 2>&1. This redirects stderr (file descriptor 2) to stdout (file descriptor 1), e.g.:
$ { echo "stdout"; echo "stderr" 1>&2; } | grep -v std
stderr
$
stdout goes to stdout, stderr goes to stderr. gre...
Deleting an element from an array in PHP
Is there an easy way to delete an element from an array using PHP, such that foreach ($array) no longer includes that element?
...
Get all column names of a DataTable into string array using (LINQ/Predicate)
...
Try this (LINQ method syntax):
string[] columnNames = dt.Columns.Cast<DataColumn>()
.Select(x => x.ColumnName)
.ToArray();
or in LINQ Query syntax:
string[...
When should you not use virtual destructors?
...ass
No specific reason to avoid it unless you are really so pressed for memory.
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