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How to limit UITableView row reordering to a section
...tion, depending on where the drag went, instead of where it started.
- (NSIndexPath *)tableView:(UITableView *)tableView targetIndexPathForMoveFromRowAtIndexPath:(NSIndexPath *)sourceIndexPath toProposedIndexPath:(NSIndexPath *)proposedDestinationIndexPath
{
if (sourceIndexPath.section != propose...
How can I calculate the number of lines changed between two commits in git?
... as well (without parameters it compares the working directory against the index). E.g.
git diff --stat HEAD^ HEAD
to compare the parent of HEAD with HEAD.
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How do I split a string into an array of characters? [duplicate]
...onsole.log(s.charAt(i));
}
You can also access each character with its index using normal array syntax. Note, however, that strings are immutable, which means you can't set the value of a character using this method, and that it isn't supported by IE7 (if that still matters to you).
var s = "ov...
What is the Java ?: operator called and what does it do?
... it is a shorthand form of
int count;
if (isHere)
count = getHereCount(index);
else
count = getAwayCount(index);
It's called the conditional operator. Many people (erroneously) call it the ternary operator, because it's the only ternary (three-argument) operator in Java, C, C++, and probabl...
Difference between “git add -A” and “git add .”
...ant for those who are used to "git add -u" (without pathspec) updating the index only for paths in the current subdirectory to start training their fingers to explicitly say "git add -u ." when they mean it before Git 2.0 comes.
A warning is issued when these commands are run without a pathspec...
How to DROP multiple columns with a single ALTER TABLE statement in SQL Server?
...you had was related to column usage. Column could be used in a constraint, index or another calculated column.
– Alex Aza
Jun 14 '11 at 15:43
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How do you convert a byte array to a hexadecimal string, and vice versa?
...7.
Some further considerations:
I didn't use a second loop variable to index into c, since measurement shows that calculating it from i is cheaper.
Using exactly i < bytes.Length as upper bound of the loop allows the JITter to eliminate bounds checks on bytes[i], so I chose that variant.
Mak...
Adding devices to team provisioning profile
...off but you can read more here: developer.apple.com/library/ios/qa/qa1814/_index.html
– thattyson
Nov 11 '15 at 0:13
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What's the difference between “Request Payload” vs “Form Data” as seen in Chrome dev tools Network t
... - or to be more precise: payload body of a HTTP Request
- is the data normally send by a POST or PUT Request.
It's the part after the headers and the CRLF of a HTTP Request.
A request with Content-Type: application/json may look like this:
POST /some-path HTTP/1.1
Content-Type: application/json
...
How to request a random row in SQL?
...r even medium sized tables. My recommendation would be to use some kind of indexed numeric column (many tables have these as their primary keys), and then write something like:
SELECT * FROM table WHERE num_value >= RAND() *
( SELECT MAX (num_value ) FROM table )
ORDER BY num_value LIMIT 1...