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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...
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 $foo is exactly a*), and the familiar !, && and || operators for negation, conjunction and disjunction as well as parentheses for grouping. Note that you need a space ar...
find filenames NOT ending in specific extensions on Unix?
...
Linux/OS X:
Starting from the current directory, recursively find all files ending in .dll or .exe
find . -type f | grep -P "\.dll$|\.exe$"
Starting from the current directory, recursively find all files that DON'T end in .dll or .exe...
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/*" - ...
Visual Studio Project vs. Solution
... application, website, Web App, script, plug-in, etc in Visual Studio, you start with a project. In a logical sense, a project contains of all the source code files, icons, images, data files and anything else that will be compiled into an executable program or web site, or else is needed in order t...
“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
...
How to add a jar in External Libraries in android studio
...You don't have to manually enter this in your build file].
Now you can start using the library in your project.
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Npm Please try using this command again as root/administrator
...should run cmd.exe as administrator.
Follow the following steps:
Click Start, click All Programs, and then click Accessories.
Right-click Command prompt, and then click Run as administrator.
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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
}
...