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Pro JavaScript programmer interview questions (with answers) [closed]
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Because JavaScript is such a small language, yet with incredible complexity, you should be able to ask relatively basic questions and find out if they are really that good based on their answers. For instance, my standard first question to gauge the rest of the interview is:
In JavaScript, ...
How to open emacs inside bash
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Just type emacs -nw. This won't open an X window.
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TypeScript Objects as Dictionary types as in C#
I have some JavaScript code that uses objects as dictionaries; for example a 'person' object will hold a some personal details keyed off the email address.
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Why doesn't 'ref' and 'out' support polymorphism?
...something from n.
That permits this sequence of events:
Declare a field x of type Animal.
Pass x as an out parameter to N.
N writes a Tiger into n, which is an alias for x.
On another thread, someone writes a Turtle into x.
N attempts to read the contents of n, and discovers a Turtle in what i...
Setting the default Java character encoding
How do I properly set the default character encoding used by the JVM (1.5.x) programmatically?
17 Answers
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Applying a function to every row of a table using dplyr?
...swer to this problem becomes:
iris %>%
rowwise() %>%
mutate(Max.Len= max(Sepal.Length,Petal.Length))
Non rowwise alternative
Five years (!) later this answer still gets a lot of traffic. Since it was given, rowwise is increasingly not recommended, although lots of people seem to find...
NodeJS / Express: what is “app.use”?
In the docs for the NodeJS express module , the example code has app.use(...) .
23 Answers
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What is the best way to convert seconds into (Hour:Minutes:Seconds:Milliseconds) time?
...utput
string str = time .ToString(@"hh\:mm\:ss\:fff");
(From Nick Molyneux) Ensure that seconds is less than TimeSpan.MaxValue.TotalSeconds to avoid an exception.
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Python: try statement in a single line
Is there a way in python to turn a try/except into a single line?
12 Answers
12
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How to include *.so library in Android Studio?
...Studio, but none of them works, especially when it comes to the point of text: This does not work with the newer xxx (Android Studio, gradle, ...)
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