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How do I use arrays in C++?
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Might be worth it to add a note that even tho in void foo(int a[3]) a does look like one is passing the array by value, modifying a inside of foo will modify the original array. This should be clear because arrays cannot be copied, but it might be worth it to reinforce that.
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when I run mockito test occurs WrongTypeOfReturnValue Exception
...mgroups#!topic/mockito/9WUvkhZUy90, you should rephrase your
when(bar.getFoo()).thenReturn(fooBar)
to
doReturn(fooBar).when(bar).getFoo()
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How do you tell someone they're writing bad code? [closed]
...s better than cutting & pasting.
Explain why an array is better than $foo1, $foo2, $foo3.
Explain why global variables are dangerous, and that local variables will make life easier.
Simply whipping out a coding standard and saying "do this" is worthless because it doesn't explain to the progr...
How do I merge two dictionaries in a single expression in Python (taking union of dictionaries)?
...ssion.
Note that we can merge in with literal notation as well:
z = {**x, 'foo': 1, 'bar': 2, **y}
and now:
>>> z
{'a': 1, 'b': 3, 'foo': 1, 'bar': 2, 'c': 4}
It is now showing as implemented in the release schedule for 3.5, PEP 478, and it has now made its way into What's New in Python 3...
R: Comment out block of code [duplicate]
...just put # signs in front of every line (possibly with editor shortcuts).
foo <- scan(what="character")
These are comments
These are still comments
Can also be code:
x <- 1:10
One line must be blank
rm(foo)
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How do I call one constructor from another in Java?
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Yes, it is possible:
public class Foo {
private int x;
public Foo() {
this(1);
}
public Foo(int x) {
this.x = x;
}
}
To chain to a particular superclass constructor instead of one in the same class, use super instead of...
How to drop columns by name in a data frame
...t) %in% c("z","u"))] ## works as expected
dat[ , -which(names(dat) %in% c("foo","bar"))] ## deletes all columns! Probably not what you wanted...
Instead use subset or the ! function:
dat[ , !names(dat) %in% c("z","u")] ## works as expected
dat[ , !names(dat) %in% c("foo","bar")] ## returns the un...
Linq to SQL how to do “where [column] in (list of values)”
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Use
where list.Contains(item.Property)
Or in your case:
var foo = from codeData in channel.AsQueryable<CodeData>()
where codeIDs.Contains(codeData.CodeId)
select codeData;
But you might as well do that in dot notation:
var foo = channel.AsQueryable<Code...
WiX tricks and tips
...ant it to appear in Add/Remove Programs-->
<?define ProductName = "Foo 64 Bit [Live]" ?>
<?else ?>
<?define ProductName = "Foo [Live]" ?>
<?endif ?>
<!-- Directory name used as default installation location -->
<?define InstallName = "Foo [Live]" ?>
<...
How to determine when a Git branch was created?
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Use
git show --summary `git merge-base foo master`
If you’d rather see it in context using gitk, then use
gitk --all --select-commit=`git merge-base foo master`
(where foo is the name of the branch you are looking for.)
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