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Append value to empty vector in R?
... to an object in a for loop causes the entire object to be copied on every iteration, which causes a lot of people to say "R is slow", or "R loops should be avoided".
As BrodieG mentioned in the comments: it is much better to pre-allocate a vector of the desired length, then set the element values ...
Get the first item from an iterable that matches a condition
I would like to get the first item from a list matching a condition. It's important that the resulting method not process the entire list, which could be quite large. For example, the following function is adequate:
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What is “Service Include” in a csproj file for?
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I had a similar case, where this was added:
<ItemGroup>
<Service Include="{82A7F48D-3B50-4B1E-B82E-3ADA8210C358}" />
</ItemGroup>
This inclusion turns out to be generated on purpose by VS2013 if you create an NUnit test project, but forget to tag it as...
How do I write output in same place on the console?
I am new to python and am writing some scripts to automate downloading files from FTP servers, etc. I want to show the progress of the download, but I want it to stay in the same position, such as:
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Block Declaration Syntax List
...laration Syntaxes
Throughout, let
return_type be the type of object/primitive/etc. you'd like to return (commonly void)
blockName be the variable name of the block you're creating
var_type be the type object/primitive/etc. you'd like to pass as an argument (leave blank for no parameters)
varName ...
FormsAuthentication.SignOut() does not log the user out
Smashed my head against this a bit too long. How do I prevent a user from browsing a site's pages after they have been logged out using FormsAuthentication.SignOut? I would expect this to do it:
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Facebook Callback appends '#_=_' to Return URL
...p; history.pushState) {
window.history.pushState("", document.title, window.location.pathname);
} else {
// Prevent scrolling by storing the page's current scroll offset
var scroll = {
top: document.body.scrollTop,
left: doc...
Is inject the same thing as reduce in ruby?
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Yes, and it's also called fold in many other programming languages and in Mathematics. Ruby aliases a lot in order to be intuitive to programmers with different backgrounds. If you want to use #length on an Array, you can. If you want...
Search and Replace with RegEx components in Atom editor
... and open the search pane, there is a ".*" button at the right side. Click it and now it's regex mode.
I find
(http.*)\{\.uri\}
and replace to
[$1]($1)
share
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How do I get the path of a process in Unix / Linux
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edited Mar 6 '17 at 19:39
Nathan
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