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Entity Framework rollback and remove bad migration
...d after the one specified will be down-graded in order starting with the latest migration applied first.
Step 2: Delete your migration from the project
remove-migration name_of_bad_migration
If the remove-migration command is not available in your version of Entity Framework, delete the files of th...
Creating a zero-filled pandas data frame
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Testing this I find %timeit temp = np.zeros((10, 11)); d = pd.DataFrame(temp, columns = ['col1', 'col2',...'col11']) takes 156 us. But %timeit d = pd.DataFrame(0, index = np.arange(10), columns = ['col1', 'col2',...'col11']) ...
Is it possible for a computer to “learn” a regular expression by user-provided examples?
...ions. All tools like RegexBuddy can do is to make it easier to create and test the high-level description. Instead of using the terse regular expression syntax directly, RegexBuddy enables you to use plain English building blocks. But it can't create the high-level description for you, since it c...
Why should a function have only one exit-point? [closed]
...ools we have today, this is a far less reasonable position to take as unit tests and logging can make single-exit unnecessary. That said, when you need to watch code execute in a debugger, it was much harder to understand and work with code containing multiple exit points.
This became especially tr...
Get the full URL in PHP
...It will not show the default port 80 for HTTP and port 443 for HTTPS.
Only tested with http and https schemes.
The #fragment_id is not sent to the server by the client (browser) and will not be added to the full URL.
$_GET will only contain foo=bar2 for an URL like /example?foo=bar1&foo=bar2.
So...
How can I count the number of matches for a regex?
...completely different.
Complete example:
import java.util.regex.*;
class Test {
public static void main(String[] args) {
String hello = "HelloxxxHelloxxxHello";
Pattern pattern = Pattern.compile("Hello");
Matcher matcher = pattern.matcher(hello);
int count = 0;...
Difference between using Throwable and Exception in a try catch
...al in a framework type application (for example an application server or a testing framework) where it can be running unknown code and should not be affected by anything that goes wrong with that code, as much as possible.
s...
How are everyday machines programmed?
...tart over. There are newer chips FPGA that higher end devices use to make testing, deploying, etc easier, but they are the same thing.
Coca-cola machines, routers, etc. typically use a realtime OS like QNX, EMBOS, or sometimes RTlinux if you're lucky. Most of these are proprietary OS you license...
Does uninstalling a package with “pip” also remove the dependent packages?
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@loved.by.Jesus - I'm on python 3.8.3 and I tested and still see the command executed as pip-autoremove (dash not underscore). pip_autoremove gives me command not found.
– bwv549
Jun 19 at 5:38
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Calling Python in Java?
...rpreter.get("funcName");
PyObject result = someFunc.__call__(new PyString("Test!"));
String realResult = (String) result.__tojava__(String.class);
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