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Is there a way to dump a stack trace without throwing an exception in java?
... to walk the StackFrame stream. The stream reports stack frame elements in order, from the top most frame that represents the execution point at which the stack was generated to the bottom most frame. The StackFrame stream is closed when the walk method returns. If an attempt is made to reuse the cl...
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...
What does denote in C# [duplicate]
...neric interfaces, such as IComparable<T> rather than IComparable, in order to avoid boxing and unboxing operations on value types."
– Robert Harvey
Mar 8 '19 at 15:11
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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 ...
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...
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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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 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...
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...