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Using CMake with GNU Make: How can I see the exact commands?
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The top google hit recommends "if you want to see solely the g++ command lines, you should use grep & Co. - if possible - in connection with verbose Makefiles". Perhaps developers with lots of cmake experience have other advice.
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Have a fixed position div that needs to scroll if content overflows
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If you set "overflow-y" to auto, the scroll bar will disappear when the content is within the viewport. In other words, if it doesn't overflow, there will be no scroll bar and when it does overflow, there will be a scrollbar....
Return 0 if field is null in MySQL
In MySQL, is there a way to set the "total" fields to zero if they are NULL?
5 Answers
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Principal component analysis in Python
...o 90 %, 95 % ...
p.npc: number of principal components,
e.g. 2 if the top 2 eigenvalues are >= `fraction` of the total.
It's ok to change this; methods use the current value.
Methods:
The methods of class PCA transform vectors or arrays of e.g.
20 variables, 2 princip...
ASP.Net MVC Html.HiddenFor with wrong value
...e POST request and after that the value in the model. This means that even if you modify the value of the model in your controller action if there is the same variable in the POST request your modification will be ignored and the POSTed value will be used.
One possible workaround is to remove this ...
Is there shorthand for returning a default value if None in Python? [duplicate]
In C#, I can say x ?? "" , which will give me x if x is not null, and the empty string if x is null. I've found it useful for working with databases.
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Twitter Bootstrap 3: how to use media queries?
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Bootstrap 3
Here are the selectors used in BS3, if you want to stay consistent:
@media(max-width:767px){}
@media(min-width:768px){}
@media(min-width:992px){}
@media(min-width:1200px){}
Note: FYI, this may be useful for debugging:
<span class="visible-xs">SIZE XS&...
Escape regex special characters in a Python string
...ring)
Return string with all non-alphanumerics backslashed; this is useful if you want to match an arbitrary literal string that may have regular expression metacharacters in it.
As of Python 3.7 re.escape() was changed to escape only characters which are meaningful to regex operations.
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What is the difference between Step Into and Step Over in the Eclipse debugger?
I want to debug the whole flow of a Java program. What is the difference between F5 (step into) and F6 (step over) in eclipse?
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Quickest way to convert XML to JSON in Java [closed]
...cy:
<dependency>
<groupId>org.json</groupId>
<artifactId>json</artifactId>
<version>20180813</version>
</dependency>
XML.java is the class you're looking for:
import org.json.JSONObject;
import org.json.XML;
public class Main {
public s...