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How to properly document S4 class slots using Roxygen2?
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30
Updated answer for Roxygen2 5.0.1, current as of 6.0.1
For S4, the best practice now is documen...
How to use timeit module
...random
random.seed('slartibartfast')
s = [random.random() for i in range(1000)]
timsort = list.sort
'''
>>> print min(timeit.Timer('a=s[:]; timsort(a)', setup=setup).repeat(7, 1000))
0.334147930145
Note that the series of statements makes a fresh copy of the unsorted data on every pass....
How can we prepend strings with StringBuilder?
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Using the insert method with the position parameter set to 0 would be the same as prepending (i.e. inserting at the beginning).
An example is: varStringBuilder.insert(0, "someThing");
It works both for C# and Java
...
Return Boolean Value on SQL Select Statement
...SELECT CASE WHEN EXISTS (
SELECT *
FROM [User]
WHERE UserID = 20070022
)
THEN CAST(1 AS BIT)
ELSE CAST(0 AS BIT) END
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Using CSS for a fade-in effect on page load
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+50
Method 1:
If you are looking for a self-invoking transition then you should use CSS 3 Animations. They aren't supported either, but ...
Why does typeof NaN return 'number'?
...N as at least one operand
Indeterminate forms
The divisions 0/0, ∞/∞, ∞/−∞, −∞/∞, and −∞/−∞
The multiplications 0×∞ and 0×−∞
The power 1^∞
The additions ∞ + (−∞), (−∞) + ∞ and equivalent subtractions.
Real operations with...
IF statement: how to leave cell blank if condition is false (“” does not work)
... COUNTBLANK, which will count "" as blank, so basically =COUNTBLANK(C1)>0 means that C1 is blank or has "".
If you need to remove blank cells in a column, I would recommend filtering on the column for blanks, then selecting the resulting cells and pressing Del. After which you can remove the fi...
Android: Coloring part of a string using TextView.setText()?
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201
Use spans.
Example:
final SpannableStringBuilder sb = new SpannableStringBuilder("your text h...
How to get names of enum entries?
...og("enum member: ", enumMember);
}
Will print the following:
Enum member: 0
Enum member: 1
Enum member: bar
Enum member: foo
If you instead want only the member names, and not the values, you could do something like this:
for (var enumMember in myEnum) {
var isValueProperty = parseInt(enumMembe...
The Role Manager feature has not been enabled
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304
You can do this by reading from the boolean property at:
System.Web.Security.Roles.Enabled
T...