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What is the purpose of the var keyword and when should I use it (or omit it)?
What em>x m>actly is the function of the var keyword in JavaScript, and what is the difference between
19 Answers
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Convert decimal to hem>x m>adecimal in UNIm>X m> shell script
In a UNIm>X m> shell script, what can I use to convert decimal numbers into hem>x m>adecimal? I thought od would do the trick, but it's not realizing I'm feeding it ASCII representations of numbers.
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Reasons for using the set.seed function
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The need is the possible desire for reproducible results, which may for em>x m>ample come from trying to debug your program, or of course from trying to redo what it does:
These two results we will "never" reproduce as I just asked for something "random":
R> sample(LETTERS, 5)
[1] "K" "N" "R" "Z" ...
Convert integer into byte array (Java)
...tional, the initial order of a byte buffer is always BIG_ENDIAN.
b.putInt(0m>x m>AABBCCDD);
byte[] result = b.array();
Setting the byte order ensures that result[0] == 0m>x m>AA, result[1] == 0m>x m>BB, result[2] == 0m>x m>CC and result[3] == 0m>x m>DD.
Or alternatively, you could do it manually:
byte[] toBytes(int i)
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DbEntityValidationEm>x m>ception - How can I easily tell what caused the error?
...ject that uses Entity Framework. While calling SaveChanges on my DbContem>x m>t , I get the following em>x m>ception:
9 Answers
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How do I set the default locale in the JVM?
...of your application is determined in three ways.
First, unless you have em>x m>plicitly changed the default, the
Locale.getDefault() method returns the locale that was initially determined
by the Java Virtual Machine (JVM) when it first loaded. That is, the
JVM determines the default locale from ...
Useful code which uses reduce()? [closed]
...python? Is there any code other than the usual + and * that we see in the em>x m>amples?
24 Answers
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How to programmatically close a JFrame
...rrect way to get a JFrame to close, the same as if the user had hit the m>X m> close button, or pressed Alt + F4 (on Windows)?
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Drop unused factor levels in a subsetted data frame
...r . When I create a subset of this dataframe using subset or another indem>x m>ing function, a new data frame is created. However, the factor variable retains all of its original levels, even when/if they do not em>x m>ist in the new dataframe.
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input() error - NameError: name '…' is not defined
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input function in Python 2.7, evaluates whatever your enter, as a Python em>x m>pression. If you simply want to read strings, then use raw_input function in Python 2.7, which will not evaluate the read strings.
If you are using Python 3.m>x m>, raw_input has been renamed to input. Quoting the Python 3.0 rel...