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Unix's 'ls' sort by name
... FILEs (the current directory by default). Sort entries alpha‐betically if none of -cftuvSUX nor --sort is specified.:
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How to check if function exists in JavaScript?
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Try something like this:
if (typeof me.onChange !== "undefined") {
// safe to use the function
}
or better yet (as per UpTheCreek upvoted comment)
if (typeof me.onChange === "function") {
// safe to use the function
}
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A non-blocking read on a subprocess.PIPE in Python
...standard output. Is there a way to make .readline non-blocking or to check if there is data on the stream before I invoke .readline ? I'd like this to be portable or at least work under Windows and Linux.
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Why is there no std::stou?
...lemented by calling ...", because the C++ standard still has the global as-if rule: if the standard says std::sto* must be implemented as wrappers for the C library functions, and a valid program cannot tell that they aren't secretly implemented differently, the implementation is valid.
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How to check if a word is an English word with Python?
I want to check in a Python program if a word is in the English dictionary.
9 Answers
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iOS: Compare two dates
...two NSDate and I try with NSOrderAscending and NSOrderDescending but if my date is equal at other two dates?
6 Answer...
'typeid' versus 'typeof' in C++
I am wondering what the difference is between typeid and typeof in C++. Here's what I know:
6 Answers
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“Insert if not exists” statement in SQLite
... to insert values ( users_id , lessoninfo_id ) in table bookmarks , only if both do not exist before in a row.
4 Answers
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Change templates in Xcode
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You wouldn't change the existing templates. In other words, don't modify anything under the /Developer hierarchy (or wherever you installed your developer tools).
Instead, clone the templates you want to have customized variants of. Then change their names and the information in them. Final...
What is the size of ActionBar in pixels?
...height of the ActionBar in XML, just use
?android:attr/actionBarSize
or if you're an ActionBarSherlock or AppCompat user, use this
?attr/actionBarSize
If you need this value at runtime, use this
final TypedArray styledAttributes = getContext().getTheme().obtainStyledAttributes(
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