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Better way to cast object to int
... to signify a Nullable<int>. The "as" operator works like Convert.To____(), but think TryParse() rather than Parse(): it returns null rather than throwing an exception if the conversion fails.
Of these, I would prefer (int) if the object really is just a boxed integer. Otherwise use Conver...
In Java, how do I convert a byte array to a string of hex digits while keeping leading zeros? [dupli
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When I called Integer.toHexString((byte)0xff) it returned "ffffffff" because of sign extension. So one might need to take the last two characters of the returned string.
– Marvo
Jul 27 '12 at 2...
Reactjs convert html string to jsx
...se the dangerouslySetInnerHTML property:
<td dangerouslySetInnerHTML={{__html: this.state.actions}} />
React forces this intentionally-cumbersome syntax so that you don't accidentally render text as HTML and introduce XSS bugs.
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jQueryUI Tooltips are competing with Twitter Bootstrap
I have been able to get some tool tips to work finally with the following code:
10 Answers
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Is there a C# type for representing an integer Range?
I have a need to store an integer range. Is there an existing type for that in C# 4.0?
10 Answers
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R object identification
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I usually start out with some combination of:
typeof(obj)
class(obj)
sapply(obj, class)
sapply(obj, attributes)
attributes(obj)
names(obj)
as appropriate based on what's revealed. For example, try with:
obj <- data.frame(a...
How to concatenate string variables in Bash
...he habit of putting $foo inside the double quotes, for the times when it really does matter.
– Cascabel
Nov 15 '10 at 7:56
109
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Is there any sed like utility for cmd.exe? [closed]
...ershell saved me.
For grep there is:
get-content somefile.txt | where { $_ -match "expression"}
or
select-string somefile.txt -pattern "expression"
and for sed there is:
get-content somefile.txt | %{$_ -replace "expression","replace"}
For more detail see Zain Naboulsis blog entry.
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Compute a confidence interval from sample data
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Importing scipy does not necessarily import all the subpackages automatically. Better to import the sub-package scipy.stats explicitly.
– Vikram
Jul 2 '13 at 10:24
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What is the best way to concatenate two vectors?
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AB.reserve( A.size() + B.size() ); // preallocate memory
AB.insert( AB.end(), A.begin(), A.end() );
AB.insert( AB.end(), B.begin(), B.end() );
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