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Spring JPA @Query with LIKE
....setParameter("username", "%foo%"); @MatthewDaumen
– xuezhongyu01
Sep 30 '19 at 7:59
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How do I fix the Visual Studio compile error, “mismatch between processor architecture”?
.... The C# DLL references a few other DLLs, some within my project and some external. When I try to compile the C++ DLL, I get this warning:
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PDOException SQLSTATE[HY000] [2002] No such file or directory
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Why doesn't ruby support method overloading?
Instead of supporting method overloading Ruby overwrites existing methods. Can anyone explain why the language was designed this way?
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How can I have linebreaks in my long LaTeX equations?
My equation is very long. How do I get it to continue on the next line rather than go off the page?
11 Answers
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Set scroll position
...an use window.scrollTo(), like this:
window.scrollTo(0, 0); // values are x,y-offset
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What is the purpose of wrapping whole Javascript files in anonymous functions like “(function(){ … }
... definition. The technical name for it is an Immediately Invoked Function Expression (IIFE). jQuery plugins are usually written like this.
In Javascript, you can nest functions. So, the following is legal:
function outerFunction() {
function innerFunction() {
// code
}
}
Now you can ...
Group by multiple columns in dplyr, using string vector input
...s you would use with select, like so:
data = data.frame(
asihckhdoydkhxiydfgfTgdsx = sample(LETTERS[1:3], 100, replace=TRUE),
a30mvxigxkghc5cdsvxvyv0ja = sample(LETTERS[1:3], 100, replace=TRUE),
value = rnorm(100)
)
# get the columns we want to average within
columns = names(data)[-3]
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Convert Pixels to Points
I have a need to convert Pixels to Points in C#. I've seen some complicated explanations about the topic, but can't seem to locate a simple formula. Let's assume a standard 96dpi, how do I calulate this conversion?
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