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How is Python's List Implemented?
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@sepp I believe lists in Python are just ordered collections; the implementation and/or performance requirements of said implementation are not explicitly stated
– NullUserException
Oct 12 '10 at 18:05
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How to get domain URL and application name?
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Take a look at the documentation for HttpServletRequest.
In order to build the URL in your example you will need to use:
getScheme()
getServerName()
getServerPort()
getContextPath()
Here is a method that will return your example:
public static String getURLWithContextPath(HttpSe...
Delete with Join in MySQL
...wanted to:
DELETE posts, projects FROM posts INNER JOIN [...]
Note that order by and limit don't work for multi-table deletes.
Also be aware that if you declare an alias for a table, you must use the alias when referring to the table:
DELETE p FROM posts as p INNER JOIN [...]
Contributions ...
How to execute a JavaScript function when I have its name as a string
...t:
window["My"]["Namespace"]["functionName"](arguments); // succeeds
In order to make that easier and provide some flexibility, here is a convenience function:
function executeFunctionByName(functionName, context /*, args */) {
var args = Array.prototype.slice.call(arguments, 2);
var namespa...
Rails: Get Client IP address
...ectly you assume responsibility for testing them in the correct precedence order. Proxies introduce a number of headers that create environment variables with different names.
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JavaScript post request like a form submit
...ld);
});
// The form needs to be a part of the document in
// order for us to be able to submit it.
$(document.body).append(form);
form.submit();
}
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Add a custom attribute to a Laravel / Eloquent model on load?
...his: Custom model accessors not processed when ->toJson() called?
In order to force your attribute to be returned in the array, add it as a key to the $attributes array.
class User extends Eloquent {
protected $attributes = array(
'ZipCode' => '',
);
public function ge...
How to list all tags that contain a commit?
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Note that you need git 2.0.x (Q3 2014) in order to list all tags for a certain commit if you have a large repo
See commit cbc60b6 by Jean-Jacques Lafay (lanfeust69):
git tag --contains: avoid stack overflow
In large repos, the recursion implementation of contains(co...
How to delete a row by reference in data.table?
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the approach that i have taken in order to make memory use be similar to in-place deletion is to subset a column at a time and delete. not as fast as a proper C memmove solution, but memory use is all i care about here. something like this:
DT = data.table(c...
Why use a prime number in hashCode?
...now something about the set of input values and the set's regularities, in order to write a function that's designed to strip them of those regularities, so the values in the set don't collide in the same hash buckets. Multiplying/Dividing/Moduloing by a prime number achieves that affect, because i...