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Get difference between 2 dates in JavaScript? [duplicate]
...tes that occur up to twice a year in UTC. You must not assume that offsets from epoch (00:00:00 hours 1 January 1970) in other languages and operating systems will be the same since some of them have 58, 59, 61, and 62 second minutes.
– Jim
Mar 8 '15 at 3:13
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Image comparison - fast algorithm
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My company has about 24million images come in from manufacturers every month. I was looking for a fast solution to ensure that the images we upload to our catalog are new images.
I want to say that I have searched the internet far and wide to attempt to find an ideal s...
How to “EXPIRE” the “HSET” child key in redis?
...e useful in all scenarios and the performance characteristics might differ from the expected ones. Still worth mentioning:
When having a hash, the structure basically looks like:
hash_top_key
- child_key_1 -> some_value
- child_key_2 -> some_value
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- child_key_n -> some_value
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ASP.NET MVC 5 - Identity. How to get current ApplicationUser
...rlying OWIN access to the database will use a separate context, so changes from separate SQL access can produce invalid results (e.g. not seeing changes made to the database). Again the solution is to work with the supplied API and not try to work-around it.
The correct way to access the current us...
Can't make the custom DialogFragment transparent over the Fragment
... In order this not to invoke an exception you should call a DialogFragment from Activity or Fragment through dialogFragment.show(...); method, not FragmentTransaction's add.
– CoolMind
Aug 16 '16 at 15:32
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Set 4 Space Indent in Emacs in Text Mode
I've been unsuccessful in getting Emacs to switch from 8 space tabs to 4 space tabs when pressing the TAB in buffers with the major mode text-mode . I've added the following to my .emacs :
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How can I access “static” class variables within class methods in Python?
... when using static variables, it's a good idea to read the gotchas from here: stackoverflow.com/questions/68645/… . @Constantin gives one of the many gotchas.
– Trevor Boyd Smith
Mar 21 '17 at 16:27
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Why is it bad practice to call System.gc()?
...you should be using this, you shouldn't"
EDIT to address a few concerns from the other thread:
After reading the thread you linked, there's a few more things I'd like to point out.
First, someone suggested that calling gc() may return memory to the system. That's certainly not necessarily true ...
how to make twitter bootstrap submenu to open on the left side?
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OP's question and my answer are from august 2012. Meanwhile, Bootstrap is changed, so now you have .pull-left class. Back then, my answer was correct. Now you don't have to manually set css, you have that .pull-left class.
– Miljan Puz...
How to save picture to iPhone photo library?
What do I need to do to save an image my program has generated (possibly from the camera, possibly not) to the system photo library on the iPhone?
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