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What does iota of std::iota stand for?
...
Oh, I was always under the impression that since std::iota(start,end,0) essentially stands for
for(size_t i = 0; i < std::distance(start, end) ; i++) { start[i] = i; }
then you essentially "assign i" to each array element, and iota is greek for i, so there.
(I wouldn't be surp...
How to capture stdout output from a Python function call?
...readline(self, callback):
self._on_readline_cb = callback
def start(self):
self._stdout = sys.stdout
self._stderr = sys.stderr
r, w = os.pipe()
r, w = os.fdopen(r, 'r'), os.fdopen(w, 'w', 1)
self._r = r
self._w = w
sys.stdout = sel...
How to replace an item in an array with Javascript?
... like so now:
if (contains(items, 3452)) {
// do something else...
}
Starting with ES6/ES2015 for strings, and proposed for ES2016 for arrays, you can more easily determine if a source contains another value:
if (haystack.includes(needle)) {
// do your thing
}
...
Wrong requestCode in onActivityResult
I'm starting a new Activity from my Fragment with
6 Answers
6
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Setting a property by reflection with a string value
... Convert.ChangeType - This does work for some cases however as soon as you start involving nullable types you will start receiving InvalidCastExceptions:
http://weblogs.asp.net/pjohnson/archive/2006/02/07/Convert.ChangeType-doesn_2700_t-handle-nullables.aspx
A wrapper was written a few years a...
Can I change the Android startActivity() transition animation?
I am starting an activity and would rather have a alpha fade-in for startActivity() , and a fade-out for the finish() . How can I go about this in the Android SDK?
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How to add a list item to an existing unordered list?
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Wouldn't your approach start new tags but not close them?
– everton
Jan 12 '12 at 11:04
1
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Simple logical operators in Bash
...that the right-hand side is a pattern, e.g. [[ $foo == a* ]] tests if $foo starts with a while [[ $foo == "a*" ]] tests if $foo is exactly a*), and the familiar !, && and || operators for negation, conjunction and disjunction as well as parentheses for grouping. Note that you need a space ar...
Use find command but exclude files in two directories
...aks.bed" ! -path "./tmp/*" ! -path "./scripts/*"
Explanation:
find . - Start find from current working directory (recursively by default)
-type f - Specify to find that you only want files in the results
-name "*_peaks.bed" - Look for files with the name ending in _peaks.bed
! -path "./tmp/*" - ...
“Notice: Undefined variable”, “Notice: Undefined index”, and “Notice: Undefined offset” using PHP
...ore you use them. For $_SESSION you have to make sure you have the session started with session_start() and that the index also exists.
Also note that all 3 variables are superglobals and are uppercase.
Related:
Notice: Undefined variable
Notice: Undefined Index
...