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Calculate the execution time of a method
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edited Dec 9 '17 at 12:27
Matthias Braun
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Remove Item from ArrayList
I have an ArrayList suppose list , and it has 8 items A-H and now I want to delete 1,3,5 position Item stored in int array from the list how can I do this.
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How can I find out the current route in Rails?
...ed to know the current route in a filter in Rails. How can I find out what it is?
13 Answers
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Razor view engine, how to enter preprocessor(#if debug)
I am writing my first razor page today, can't figure out how to enter #if debug #else #endif
9 Answers
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Auto-loading lib files in Rails 4
I use the following line in an initializer to autoload code in my /lib directory during development:
4 Answers
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Cluster analysis in R: determine the optimal number of clusters
...tml for more. The location of the elbow in the resulting plot suggests a suitable number of clusters for the kmeans:
mydata <- d
wss <- (nrow(mydata)-1)*sum(apply(mydata,2,var))
for (i in 2:15) wss[i] <- sum(kmeans(mydata,
centers=i)$withinss)
plot(...
How to implement a custom AlertDialog View
In the Android docs on AlertDialog , it gives the following instruction and example for setting a custom view in an AlertDialog:
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What does %~dp0 mean, and how does it work?
I find %~dp0 very useful, and I use it a lot to make my batch files more portable.
7 Answers
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How to getText on an input in protractor
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This is answered in the Protractor FAQ: https://github.com/angular/protractor/blob/master/docs/faq.md#the-result-of-gettext-from-an-input-element-is-always-empty
The result of getText from an input element is always empty
This is a webdriver quirk. and elements always h...
SQL Server IN vs. EXISTS Performance
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EXISTS will be faster because once the engine has found a hit, it will quit looking as the condition has proved true.
With IN, it will collect all the results from the sub-query before further processing.
sh...