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SQL : BETWEEN vs =
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Would there be a second compiler step as BETWEEN gets converted to conditionals? I understand this is a bit pedantic but would there be an additional overhead?
– James Scott
Aug 11 '16 at 14:48
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Initializing multiple variables to the same value in Java
I'm looking for a clean and efficient method of declaring multiple variables of the same type and of the same value. Right now I have:
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PHP - how to create a newline character?
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Strings between double quotes "" interpolate, meaning they convert escaped characters to printable characters.
Strings between single quotes '' are literal, meaning they are treated exactly as the characters are typed in.
You can have both on the same line:
echo '$clientid $lastn...
Deserializing a JSON into a JavaScript object
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The whole point of JSON is that JSON strings can be converted to native objects without doing anything. Check this link
You can use either eval(string) or JSON.parse(string).
However, eval is risky. From json.org:
The eval function is very fast.
However, it can compile...
How to hide status bar in Android
... clicks on EditText(for ex To: ) at that time keyboard will be popped out and at the same time the user can be able to scroll to see all remaining views(ex: compose,subject, send button) in that screen. Similarly in my app I have one activity in that I am having some widgets or views.
Suppose i...
How can I add an animation to the activity finish()
I'm using overridePendingTransition for when my activity is created and that works fine I can see the fade in works great, but when I try and animate the finish on the activity it is still doing the default right to left slide.
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RuntimeWarning: DateTimeField received a naive datetime
...e your naive datetime objects timezone aware and avoid those warnings.
It converts naive datetime object (without timezone info) to the one that has timezone info (using timezone specified in your django settings if you don't specify it explicitly as a second argument):
import datetime
from django...
Post JSON using Python Requests
.... The data parameter of requests works fine with dictionaries. No need for converting to a string.
– Advait S
Jul 2 '18 at 6:32
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show 1 mor...
C++ valarray vs. vector
I like vectors a lot. They're nifty and fast. But I know this thing called a valarray exists. Why would I use a valarray instead of a vector? I know valarrays have some syntactic sugar, but other than that, when are they useful?
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Difference between add(), replace(), and addToBackStack()
... This means that the transaction will be remembered after it is committed, and will reverse its operation when later popped off the stack.
2) fragmentTransaction.replace(int containerViewId, Fragment fragment, String tag)
Description - Replace an existing fragment that was added to a container. Th...