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Is it better to call ToList() or ToArray() in LINQ queries?
... interesting fact that I came across is that for correlated queries caused by using a group defined through a group join in your projection causes Linq to SQL to add another sub-query to retrieve the count for that group. I'm assuming that this means in these cases the size of the collection will be...
What is the difference between #import and #include in Objective-C?
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I think #import is actually an addition by GCC, not by Objective-C. You can use it in non-ObjC languages as long as you compile with GCC (or Clang)
– Dave DeLong
Dec 1 '09 at 22:48
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Which is generally best to use — StringComparison.OrdinalIgnoreCase or StringComparison.InvariantCul
...gnoreCase members of the new StringComparison enumeration. These enforce a byte-by-byte comparison similar to strcmp that not only avoids bugs from linguistic interpretation of essentially symbolic strings, but provides better performance.
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Using the star sign in grep
...* -- grep 'abc.*def' myFile will match a string that contains abc followed by def with something optionally in between.
Update based on a comment:
* in a regular expression is not exactly the same as * in the console. In the console, * is part of a glob construct, and just acts as a wildcard (for ...
Download single files from GitHub
...ke so
https://raw.githubusercontent.com/user/repository/branch/filename
By filling in the blanks in the URL, you can use Wget or cURL (with the -L option, see below) or whatever to download a single file. Again, you won't get any of the nice version control features used by Git by doing this.
Up...
What Are Some Good .NET Profilers?
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One-click filters to find common leaks including: objects kept alive only by event handlers, objects that are disposed but still live and objects that are only being kept alive by a reference from a disposed object. This is probably the killer feature of ANTS - finding leaks is incredibly fast beca...
Using the “final” modifier whenever applicable in Java [closed]
...bsess over:
Final fields - Marking fields as final forces them to be set by end of construction, making that field reference immutable. This allows safe publication of fields and can avoid the need for synchronization on later reads. (Note that for an object reference, only the field reference i...
Find all elements on a page whose element ID contains a certain text using jQuery
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If you're finding by Contains then it'll be like this
$("input[id*='DiscountType']").each(function (i, el) {
//It'll be an array of elements
});
If you're finding by Starts With then it'll be like this
$("input[id^='D...
How to use JavaScript regex over multiple lines?
...(using jQuery makes this easier, but you can always do document.getElementsByTagName("pre") with the standard DOM), and then search the text content of those results with a regexp if you need to match against the contents.
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What to do with “Unexpected indent” in python?
...ust say "no" to tabs. Most editors allow them to be automatically replaced by spaces.
The best way to avoid these issues is to always use a consistent number of spaces when you indent a subblock, and ideally use a good IDE that solves the problem for you. This will also make your code more readable...