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How do I check if a Sql server string is null or empty
...ompany.Offer_Text) AS Offer_Text
FROM ...
is the most elegant solution.
And to break it down a bit in pseudo code:
// a) NULLIF:
if (listing.Offer_Text == '')
temp := null;
else
temp := listing.Offer_Text; // may now be null or non-null, but not ''
// b) ISNULL:
if (temp is null)
result :=...
How can I combine flexbox and vertical scroll in a full-height app?
...xbox. I found what I want using old flexbox layout module ( display: box; and other things) in this link: CSS3 Flexbox full-height app and overflow
...
Why use ICollection and not IEnumerable or List on many-many/one-many relationships?
...ary/92t2ye13.aspx) for a list of objects that needs to be iterated through and modified, List<> for a list of objects that needs to be iterated through, modified, sorted, etc (See here for a full list: http://msdn.microsoft.com/en-us/library/6sh2ey19.aspx).
From a more specific standpoint, la...
How can I mark “To Do” comments in Xcode?
...se //FIXME: or #warning. when you use #warning, you got a warning in Xcode and you can jump directly to that part.
– brush51
Jun 4 '13 at 8:48
6
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Going to a specific line number using Less in Unix
...
... and don't hit enter after g, or you will jump one further line.
– HongboZhu
Jan 14 at 11:28
...
How to change context root of a dynamic web project in Eclipse?
...hese answers give workarounds. What actually must happen is that you clean and re-publish your project to "activate" the new URI. This is done by right-clicking your server (in the Servers view) and choosing Clean. Then you start (or restart it). Most of the other answers here suggest you do things ...
How to detect Adblock on my website?
...
My solution is not specific to a certain ad network and is very lightweight. I've been running it in production for a few years. AdBlock blocks all URLs containing the word "ads" or "prebid". So this is what I did:
I added a small js file to my webroot with the name prebid-ads...
What is polymorphism, what is it for, and how is it used?
What is polymorphism, what is it for, and how is it used?
28 Answers
28
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Find() vs. Where().FirstOrDefault()
I often see people using Where.FirstOrDefault() to do a search and grab the first element. Why not just use Find() ? Is there an advantage to the other? I couldn't tell a difference.
...
How can I change the cache path for npm (or completely disable the cache) on Windows?
...
You can change npm cache folder using the npm command line. (see : https://docs.npmjs.com/misc/config and more specifically https://docs.npmjs.com/misc/config#cache)
So you might want to try this command :
> npm config set cache C:\Devel\nodejs\npm-cache --global
...