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Use of #pragma in C
...take some action, override some default, etc. that may or may not apply to all machines and operating systems.
See msdn for more info.
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Reuse Cucumber steps
...E: The method described below has been deprecated. The recommended way to call a step from within another step now looks like this:
Given /^I login successfully$/
step "I login with valid credentials"
end
Old, deprecated method (for reference):
You can call steps from other steps like th...
Remove the first character of a string
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@Spaceghost: The OP states "Specifically I want to remove the first character."
– Sven Marnach
Feb 9 '11 at 14:27
3
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Undo a git stash
...ll not reset what is in the staging directory, so you will have to restage all that (which can be annoying if you had just done a complex git add -p
– Nick
Jan 2 '13 at 17:31
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dplyr summarise: Equivalent of “.drop=FALSE” to keep groups with zero length in output
...e to go with @Moody_Mudskipper's answer: Using .drop=FALSE can give potentially unexpected results when one or more grouping variables are not coded as factors. See examples below:
library(dplyr)
data(iris)
# Add an additional level to Species
iris$Species = factor(iris$Species, levels=c(levels(ir...
What is the difference between children and childNodes in JavaScript?
...erty of an Element. 1 Only Elements have .children, and these children are all of type Element. 2
However, .childNodes is a property of Node. .childNodes can contain any node. 3
A concrete example would be:
let el = document.createElement("div");
el.textContent = "foo";
el.childNodes.length === ...
How do I find out which computer is the domain controller in Windows programmatically?
...dows, type the following commande:
nltest /dclist:{domainname}
It lists all domain controllers in particular domain
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GitHub: searching through older versions of files
I know that using GitHub I can search through all the current versions of my files in a repo. However, I would also like to search through the older versions of my repo files. For example, say, I used to have a function called get_info() in my code, but deleted it several versions ago, is it possibl...
Boolean operators && and ||
...es the longer form "appropriate for programming control-flow and [is] typically preferred in if clauses."
So you want to use the long forms only when you are certain the vectors are length one.
You should be absolutely certain your vectors are only length 1, such as in cases where they are funct...
T-SQL stored procedure that accepts multiple Id values
...sing the List as Many Parameters. Tedious and error prone, but simple.
Really Slow Methods. Methods that uses charindex, patindex or LIKE.
I really can't recommend enough to read the article to learn about the tradeoffs among all these options.
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