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Double Iteration in List Comprehension
...f_words
I like to think of list comprehension as stretching code horizontally.
Try breaking it up into:
# List Comprehension
[word for sentence in text for word in sentence]
Example:
>>> text = (("Hi", "Steve!"), ("What's", "up?"))
>>> [word for sentence in text for word in...
Difference between / and /* in servlet mapping url pattern
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<url-pattern>/*</url-pattern>
The /* on a servlet overrides all other servlets, including all servlets provided by the servletcontainer such as the default servlet and the JSP servlet. Whatever request you fire, it will end up in that servlet. This is thus a bad URL pattern for servle...
What's the difference between git clone --mirror and git clone --bare
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The difference is that when using --mirror, all refs are copied as-is. This means everything: remote-tracking branches, notes, refs/originals/* (backups from filter-branch). The cloned repo has it all. It's also set up so that a remote update will re-fetch everything f...
Entity Framework: “Store update, insert, or delete statement affected an unexpected number of rows (
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That's a side-effect of a feature called optimistic concurrency.
Not 100% sure how to turn it on/off in Entity Framework but basically what it's telling you is that between when you grabbed the data out of the database and when you saved your changes someone ...
Why does string::compare return an int?
Why does string::compare return an int instead of a smaller type like short or char ? My understanding is that this method only returns -1, 0 or 1.
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“X does not name a type” error in C++
...efined is called an incomplete type.
Consider the simpler example:
struct foo; // foo is *declared* to be a struct, but that struct is not yet defined
struct bar
{
// this is okay, it's just a pointer;
// we can point to something without knowing how that something is defined
foo* fp; ...
JavaScript/jQuery to download file via POST with JSON data
...d single-page webapp. It communicates with a RESTful web service via AJAX calls.
14 Answers
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PHP - Check if two arrays are equal
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The above comment is false. If $b has all the elements $a has plus some extra ones, the two arrays are not equal yet the above code will say they are.
– Ghola
Sep 8 '14 at 12:14
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How do I pass command-line arguments to a WinForms application?
...= "/lol"; args[3] = "nisp"; What could be easier?
– Callum Rogers
Jul 24 '09 at 19:22
cant believe i saw that 'string[...
LINQPad [extension] methods [closed]
...ed queries / samples (for an example, execute a search using Edit | Search All)
Highlight - wraps an object so that it will highlight in yellow when Dumped
HorizontalRun - lets you Dump a series of objects on the same line
LINQPad also provides the HyperLinq class. This has two purposes: the first...