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Why do most fields (class members) in Android tutorial start with `m`?
...ern IDEs it's not needed since you have highlighting, mouse over tooltips, etc.
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Update a record without first querying?
...rty populated) all the other properties has their default values (0, null, etc). If you want to update the DB with a "default value", the change will not be detected by entity framework, and then DB will not be updated.
In example:
exampleEntity.ExampleProperty = null;
will not work without th...
Best way to alphanumeric check in JavaScript
...th special character letters used in some languages, like "ą", "ź", "ć" etc.
– Rafał Swacha
Jan 15 '16 at 12:01
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How to get enum value by string or int
...h necessary defensive coding to check for type safety and invalid parsing, etc.
/// <summary>
/// Extension method to return an enum value of type T for the given string.
/// </summary>
/// <typeparam name="T"></typeparam>
/// <param name="value">&l...
What is the function __construct used for?
...after it has been created, and is a good place to put initialisation code, etc.
class Person {
public function __construct() {
// Code called for each new Person we create
}
}
$person = new Person();
A constructor can accept parameters in the normal manner, which are passed whe...
What are the uses for Cross Join?
...ssue over a specific combination of items and dates (prices, availability, etc..). You could load the items and dates into separate temp tables and have your queries cross join the tables. This may be more convenient than the alternative of enumerating the items and dates in IN clauses, especially s...
Split output of command by columns using Bash?
...
try
ps |&
while read -p first second third fourth etc ; do
if [[ $first == '11383' ]]
then
echo got: $fourth
fi
done
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Detect changed input text box
...ans not firing when pasting the same thing or typing the same character or etc.
Working example: http://jsfiddle.net/g6pcp/473/
update:
And if you like to run your change function only when user finishes typing and prevent firing the change action several times, you could try this:
var tim...
JPA: unidirectional many-to-one and cascading delete
...tomatically remove all children. This solution does not need any listeners etc. Also a query like DELETE FROM Parent WHERE id = 1 will remove the children.
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Is there any way to do HTTP PUT in python
...urllib uses httplib under the scenes, but also handles redirects, proxies, etc.
– Jason R. Coombs
Oct 21 '11 at 14:54
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