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Efficient way to rotate a list in python
...t really answer the question. The question isn't about returning items in order, but rather about creating a new list that is in a different order.
– user650261
Jan 4 '16 at 21:18
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How to get the width and height of an android.widget.ImageView?
...eight, finalWidth;
final ImageView iv = (ImageView)findViewById(R.id.scaled_image);
final TextView tv = (TextView)findViewById(R.id.size_label);
ViewTreeObserver vto = iv.getViewTreeObserver();
vto.addOnPreDrawListener(new ViewTreeObserver.OnPreDrawListener() {
public boolean onPreDraw() {
...
Stacking Divs from Bottom to Top
...eight, the child divs will appear from top to bottom, sticking at the top border.
7 Answers
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Optimise PostgreSQL for fast testing
...n PostgreSQL. This setting pretty much tells PostgreSQL not to bother with ordered writes or any of that other nasty data-integrity-protection and crash-safety stuff, giving it permission to totally trash your data if you lose power or have an OS crash.
Needless to say, you should never enable fsyn...
What predefined macro can I use to detect clang?
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Found the answer using strings + grep :
$ strings /usr/bin/clang | grep __ | grep -i clang
__clang__
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Checking if a SQL Server login already exists
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In order to hande naming conflict between logins, roles, users etc. you should check the type column according to Microsoft sys.database_principals documentation
In order to handle special chacters in usernames etc, use N'<na...
Getting Java version at runtime
... every JVM. There are two possible formats for it:
Java 8 or lower: 1.6.0_23, 1.7.0, 1.7.0_80, 1.8.0_211
Java 9 or higher: 9.0.1, 11.0.4, 12, 12.0.1
Here is a trick to extract the major version: If it is a 1.x.y_z version string, extract the character at index 2 of the string. If it is a x.y.z v...
MYSQL Truncated incorrect DOUBLE value
...OT NULL
);
INSERT INTO table2 (value2)
SELECT value1
FROM table1
WHERE 1
ORDER BY value1+0
The problem is ORDER BY value1+0 - type casting.
I know that it does not answer the question but this is the first result on Google for this error and it should have other examples where this error presen...
How to define “type disjunction” (union types)?
...e this:
object Bar {
def foo[T: StringOrInt](x: T) = x match {
case _: String => println("str")
case _: Int => println("int")
}
}
And that's it. You can call foo(5) or foo("abc"), and it will work, but try foo(true) and it will fail. This could be side-stepped by the client code...
Pandas convert dataframe to array of tuples
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How about:
subset = data_set[['data_date', 'data_1', 'data_2']]
tuples = [tuple(x) for x in subset.to_numpy()]
for pandas < 0.24 use
tuples = [tuple(x) for x in subset.values]
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