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What does the [Flags] Enum Attribute mean in C#?
... And in C# 7.2 it's even clearer with leading separator! 0b_0100
– Vincenzo Petronio
Oct 26 '19 at 8:51
...
SQL selecting rows by most recent date
...ecent date".
Modified from http://wiki.lessthandot.com/index.php/Returning_The_Maximum_Value_For_A_Row
SELECT t.chargeId, t.chargeType, t.serviceMonth FROM(
SELECT chargeId,MAX(serviceMonth) AS serviceMonth
FROM invoice
GROUP BY chargeId) x
JOIN invoice t ON x.chargeId =t.chargeI...
Set element focus in angular way
...
Controller-as is much simplier with lodash. _.set(scope, attributes.focusOnSaveInput, function() { element.focus(); }).
– Atomosk
Sep 20 '18 at 8:22
...
filter for complete cases in data.frame using dplyr (case-wise deletion)
... %>% filter(complete.cases(.))
or this:
library(tidyr)
df %>% drop_na
If you want to filter based on one variable's missingness, use a conditional:
df %>% filter(!is.na(x1))
or
df %>% drop_na(x1)
Other answers indicate that of the solutions above na.omit is much slower but tha...
Rails: How to get the model class name based on the controller class name?
...ss HouseBuyersController < ApplicationController
def index
@model_name = controller_name.classify
end
end
This is often needed when abstracting controller actions:
class HouseBuyersController < ApplicationController
def index
# Equivalent of @house_buyers = HouseBuyer.find(...
Is it possible to group projects in Eclipse?
...rack/vote having it added to Project Explorer is bugs.eclipse.org/bugs/show_bug.cgi?id=266030.
– studgeek
Sep 18 '12 at 0:07
add a comment
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How to make an ImageView with rounded corners?
...eBitmap(bitmap.getWidth(), bitmap
.getHeight(), Config.ARGB_8888);
Canvas canvas = new Canvas(output);
final int color = 0xff424242;
final Paint paint = new Paint();
final Rect rect = new Rect(0, 0, bitmap.getWidth(), bitmap.getHeight());
fina...
How to undo the effect of “set -e” which makes bash exit immediately if any command fails?
...very last lines of corresponding manual page (faqs.org/docs/bashman/bashref_56.html) which I didn't read to the end.
– Tianyi Cui
Aug 18 '10 at 22:22
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UIActivityViewController crashing on iOS 8 iPads
...S8 activityViewController.popoverPresentationController.sourceView = _shareItem; }
– bluebamboo
Oct 26 '14 at 22:01
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What is the !! (not not) operator in JavaScript?
... As far as I know, this bang-bang pattern is not useful inside a if(…_ statement; only in a return statement of a function that should return a boolean.
– rds
Mar 26 '14 at 19:43
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