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What does “O(1) access time” mean?
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You're going to want to read up on Order of complexity.
http://en.wikipedia.org/wiki/Big_O_notation
In short, O(1) means that it takes a constant time, like 14 nanoseconds, or three minutes no matter the amount of data in the set.
O(n) means it takes an amo...
How does “this” keyword work within a function?
.... Inside those objects, the this pointer is being used. From the behavior of the program, I have deduced that the this pointer is referring to the class on which the method was invoked, and not the object being created by the literal.
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Git branching strategy integated with testing/QA process
...main reason is that we do not want to "pollute" the develop branch code before a feature is accepted. In case a feature would not be accepted after testing but we would like to release other features already merged on develop that would be hell. Develop is a branch from which a release is made and t...
What is the difference between Xamarin.Form's LayoutOptions, especially Fill and Expand?
In Xamarin.Forms every View has the two properties HorizontalOptions and VerticalOptions . Both are of type LayoutOptions and can have one of the following values:
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What is a monad?
... mathematician. An alternative term is computation builder which is a bit more descriptive of what they are actually useful for.
They are a pattern for chaining operations. It looks a bit like method chaining in object-oriented languages, but the mechanism is slightly different.
The pattern is mostl...
How to change the default encoding to UTF-8 for Apache?
I am using a hosting company and it will list the files in a directory if the file index.html is not there, it uses iso-8859-1 as the default encoding.
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Is it possible to capture a Ctrl+C signal and run a cleanup function, in a “defer” fashion?
... := make(chan os.Signal, 1)
signal.Notify(c, os.Interrupt)
go func(){
for sig := range c {
// sig is a ^C, handle it
}
}()
The manner in which you cause your program to terminate and print information is entirely up to you.
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How do I run a spring boot executable jar in a Production environment?
...M1, you are able to build fully executable jars using Maven and Gradle.
For Maven, just include the following in your pom.xml:
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
<configuration>
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Set a default parameter value for a JavaScript function
...hich I set a default on, which get used if the value isn't defined (and ignored if the value is passed). In Ruby you can do it like this:
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How do I get the path of the current executed file in Python?
... seem like a newbie question, but it is not. Some common approaches don't work in all cases:
13 Answers
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