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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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SQL statement to select all rows from previous day
...hat accepts three parameters (msdn.microsoft.com/en-us/library/ms189794.aspx) the question you link to is for MySql, which I guess works differently as you have found. You will find that SQL is not completely interchangeable, there are many differences like this between different vendors, especially...
Spring JPA @Query with LIKE
....setParameter("username", "%foo%"); @MatthewDaumen
– xuezhongyu01
Sep 30 '19 at 7:59
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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 ...
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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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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what does the __file__ variable mean/do?
...functions to find the directory that the file is located in.
Taking your examples one at a time:
A = os.path.join(os.path.dirname(__file__), '..')
# A is the parent directory of the directory where program resides.
B = os.path.dirname(os.path.realpath(__file__))
# B is the canonicalised (?) direc...
JavaScript exponents
How do you do exponents in JavaScript?
5 Answers
5
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