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Keep-alive header clarification

I was asked to build a site , and one of the co-developer told me That I would need to include the keep-alive header. 1 An...
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Populating a razor dropdownlist from a List in MVC

... You can separate out your business logic into a viewmodel, so your view has cleaner separation. First create a viewmodel to store the Id the user will select along with a list of items that will appear in the DropDown. ViewModel: public class UserR...
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Awaiting multiple Tasks with different results

...wait: var catTask = FeedCat(); var houseTask = SellHouse(); var carTask = BuyCar(); await Task.WhenAll(catTask, houseTask, carTask); var cat = await catTask; var house = await houseTask; var car = await carTask; You can also use Task.Result (since you know by this point they have all completed ...
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How to list variables declared in script in bash?

In my script in bash, there are lot of variables, and I have to make something to save them to file. My question is how to list all variables declared in my script and get list like this: ...
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Fastest way to replace NAs in a large data.table

I have a large data.table , with many missing values scattered throughout its ~200k rows and 200 columns. I would like to re code those NA values to zeros as efficiently as possible. ...
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Selecting the last value of a column

I have a spreadsheet with some values in column G. Some cells are empty in between, and I need to get the last value from that column into another cell. ...
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Why is unsigned integer overflow defined behavior but signed integer overflow isn't?

Unsigned integer overflow is well defined by both the C and C++ standards. For example, the C99 standard ( §6.2.5/9 ) states ...
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How to get client's IP address using JavaScript?

... I would use a web service that can return JSON (along with jQuery to make things simpler). Below are all the free active IP lookup services I could find and the information they return. If you know of any more, then please add a comment and ...
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In Python, how to display current time in readable format

...me time.ctime() # 'Mon Oct 18 13:35:29 2010' time.strftime('%l:%M%p %Z on %b %d, %Y') # ' 1:36PM EDT on Oct 18, 2010' time.strftime('%l:%M%p %z on %b %d, %Y') # ' 1:36PM EST on Oct 18, 2010' share | ...
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tmux set -g mouse-mode on doesn't work

I've been looking around and people say that putting 8 Answers 8 ...