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What is the curiously recurring template pattern (CRTP)?
Without referring to a book, can anyone please provide a good explanation for CRTP with a code example?
5 Answers
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submitting a GET form with query string params and hidden params disappear
...takes the value of action, appends a `?' to it, then appends the form data set, encoded using the "application/x-www-form-urlencoded" content type.
Maybe one could percent-encode the action-URL to embed the question mark and the parameters, and then cross one's fingers to hope all browsers would le...
Which terminal command to get just IP address and nothing else?
I'm trying to use just the IP address (inet) as a parameter in a script I wrote.
28 Answers
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Dynamic SELECT TOP @var In SQL Server
How can I have a dynamic variable setting the amount of rows to return in SQL Server? Below is not valid syntax in SQL Server 2005+:
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Actionbar notification count icon (badge) like Google has
...p"
android:singleLine="true">
</Button>
MainActivity - setting and updating my view
static Button notifCount;
static int mNotifCount = 0;
@Override
public boolean onCreateOptionsMenu(Menu menu) {
MenuInflater inflater = getSupportMenuInflater();
inflater.inflate(R.m...
Calculating arithmetic mean (one type of average) in Python
Is there a built-in or standard library method in Python to calculate the arithmetic mean (one type of average) of a list of numbers?
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Update statement with inner join on Oracle
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That syntax isn't valid in Oracle. You can do this:
UPDATE table1 SET table1.value = (SELECT table2.CODE
FROM table2
WHERE table1.value = table2.DESC)
WHERE table1.UPDATETYPE='blah'
AND EXISTS (SELECT table2.CODE
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All combinations of a list of lists
I'm basically looking for a python version of Combination of List<List<int>>
7 Answers
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Detect if an input has text in it using CSS — on a page I am visiting and do not control?
... CSS selectors refer to markup or, in some cases, to element properties as set with scripting (client-side JavaScript), rather than user actions. For example, :empty matches element with empty content in markup; all input elements are unavoidably empty in this sense. The selector [value=""] tests wh...
Call An Asynchronous Javascript Function Synchronously
...unction do some polling to check a global variable, then have the callback set data to the global.
function doSomething() {
// callback sets the received data to a global var
function callBack(d) {
window.data = d;
}
// start the async
myAsynchronousCall(param1, callBack);
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