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How to explain dependency injection to a 5-year-old? [closed]
... ( like the company list of departments, or the roles each department have etc ) then you'll have a hard time with the visibility of the Department object and to share it through all the network of objects.
What the Dependency Injection is all about it to help you to, well, "inject" these dependen...
How to reverse a string in Go?
... you cannot use len() in Go to find out the length of a string/Array/Slice etc... Here's why? - len() in Go means the size of the input in bytes. It does not correspond to its length. - Not all utf8's runes are of the same size. It can be either 1, 2, 4, or 8. - You should use unicode/ut...
When should the xlsm or xlsb formats be used?
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iTerm2 keyboard shortcut - split pane navigation
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From the documentation:
Cmd] and Cmd[ navigates among split panes in order of use.
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How to define optional methods in Swift protocol?
...cause the type of the parameter cannot be represented in Objective-C"
In order to declare optional protocols that work well with swift, declare the functions as variables instead of func's.
protocol Health {
var isInfoHealthy: (Info) -> (Bool)? { get set }
}
And then implement the proto...
NUnit's Assert.Equals throws exception “Assert.Equals should not be used for assertions”
... method through the Assert class in a unit test is certainly a mistake. In order to prevent this mistake and avoid confusion, the developers of NUnit have intentionally hidden Object.Equals in the Assert class with an implementation that throws an exception. Here's the implementation:
/// <summar...
Check if something is (not) in a list in Python
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Highlight bash/shell code in markdown
... engine='haskell' and a bunch of other C-like languages and even gawk, awk etc.
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memcpy() vs memmove()
... simple (but fast) manner. Simplistically, it just loops over the data (in order), copying from one location to the other. This can result in the source being overwritten while it's being read.
Memmove does more work to ensure it handles the overlap correctly.
EDIT:
(Unfortunately, I can't find d...
git - Your branch is ahead of 'origin/master' by 1 commit
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You cannot push anything that hasn't been committed yet. The order of operations is:
Make your change.
git add - this stages your changes for committing
git commit - this commits your staged changes locally
git push - this pushes your committed changes to a remote
If you push witho...