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Why do we need C Unions?
...ion of the value is reinterpreted as an object representation in the new type as described in 6.2.6 (a process sometimes called "type punning"). This might be a trap representation.
– Christian Gibbons
Jun 18 '18 at 20:29
...
How to get the size of a JavaScript object?
... : take a quick Heap Snapshot, run the task you suspect is leaking, take a new quick Heap Snapshot and select the comparison view at the bottom. It makes obvious what objects were created between the two snapshots.
– Johnride
Mar 28 '14 at 15:13
...
jQuery - Detect value change on hidden input field
...tMutationObserver;
var trackChange = function(element) {
var observer = new MutationObserver(function(mutations, observer) {
if(mutations[0].attributeName == "value") {
$(element).trigger("change");
}
});
observer.observe(element, {
attributes: true
});
}
// Just pass a...
What are “named tuples” in Python?
...e. There is a handy recipe for mutable recordtypes which allow you to set new values to attributes.
>>> from rcdtype import *
>>> Point = recordtype('Point', 'x y')
>>> pt1 = Point(1.0, 5.0)
>>> pt1 = Point(1.0, 5.0)
>>> pt1.x = 2.0
>>> print(p...
Why is 'false' used after this simple addEventListener function?
...unction () {
StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fstackoverflow.com%2fquestions%2f5657292%2fwhy-is-false-used-after-this-simple-addeventlistener-function%23new-answer', 'question_page');
}
);
...
Run php script as daemon process
...ystem boot and respawns on script completion.
How to set it up:
Create a new script file at /etc/init/myphpworker.conf. Here is an example:
# Info
description "My PHP Worker"
author "Jonathan"
# Events
start on startup
stop on shutdown
# Automatically respawn
respawn
respawn limit 20 5
# ...
Prevent browser from loading a drag-and-dropped file
... to accept any d-n-d any longer, regardless whether the properties are set new or not.
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How to pass objects to functions in C++?
I am new to C++ programming, but I have experience in Java. I need guidance on how to pass objects to functions in C++.
7 A...
C++ lambda with captures as a function pointer
...et, T>;
}
template<typename T>
static void* fn(void* new_fn = nullptr) {
static void* fn;
if (new_fn != nullptr)
fn = new_fn;
return fn;
}
};
Exapmle
int a = 100;
auto b = [&](void*) {return ++a;};
Converting lambda with captures to...
How can you get the Manifest Version number from the App's (Layout) XML variables?
...did is leave the manifest version name untouched (but update it whenever a new release) and use the string.xml to store the value that I'll be using across the app.
– numediaweb
Sep 16 '13 at 23:39
...