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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 ...
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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...
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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 ...
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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...
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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(...
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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...
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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 ...