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List of lists changes reflected across sublists unexpectedly
...(3)]
which will reevaluate [1]*4 each time instead of evaluating it once and making 3 references to 1 list.
You might wonder why * can't make independent objects the way the list comprehension does. That's because the multiplication operator * operates on objects, without seeing expressions. Wh...
Android - Set fragment id
...nsaction's add(int containerViewId, Fragment fragment, String tag) method and FragmentManager's findFragmentByTag(String) method.
In one of my apps, I was forced to generate strings dynamically. But it's not that expensive relative to the actual FragmentTransaction, anyway.
Another advantage to ...
Laravel Migration Change to Make a Column Nullable
...olumns, so you'll need use another technique such as writing a raw SQL command. For example:
// getting Laravel App Instance
$app = app();
// getting laravel main version
$laravelVer = explode('.',$app::VERSION);
switch ($laravelVer[0]) {
// Laravel 4
case('4'):
DB::statement('A...
How can I change the color of AlertDialog title and the color of the line under it
I changed the color of an AlertDialog title using this command
14 Answers
14
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Rails has_and_belongs_to_many migration
I have two models restaurant and user that I want to perform a has_and_belongs_to_many relationship.
4 Answers
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Is it possible to specify your own distance function using scikit-learn K-Means Clustering?
...the values in your code be reused to compute the cluster quality to aid in selecting the number of optimal clusters?
– Legend
Jul 11 '11 at 6:10
6
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Instagram how to get my user id from username?
... endpoint. (Press F12 to open developer toolbar, then click to Network Tab and trace the request.)
Sorry because I'm too busy. Hope this information help you guys.
Hmm, feel free to give me a down-vote if you want.
Update in Apr-12-2018, cameronjonesweb said that this endpoint doesn't work anym...
How do I associate a Vagrant project directory with an existing VirtualBox VM?
...irtualBox VM, so that when I vagrant up Vagrant will import the base-box and create a new virtual machine.
10 Answers
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Getting the ID of the element that fired an event
... You rock! I would think it would still have the difference between (this) and (event.target) -- being object you bound the event to vs. the object that received the event.
– Hafthor
Sep 8 '08 at 17:12
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Get object by id()? [duplicate]
...The Python weakref module lets you keep references, dictionary references, and proxies to objects without having those references count in the reference counter. They're like symbolic links.
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