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Redirect stderr and stdout in Bash
... part of POSIX, but the bash man page makes no mention of it being removed from bash in the near future. The man page does specify a preference for '&>' over '>&', which is otherwise equivalent.
– chepner
Jul 16 '12 at 20:45
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accepting HTTPS connections with self-signed certificates
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The following main steps are required to achieve a secured connection from Certification Authorities which are not considered as trusted by the android platform.
As requested by many users, I've mirrored the most important parts from my blog article here:
Grab all required certificates (root a...
How to drop columns using Rails migration
...or instance:
remove_column :users, :hobby
would remove the hobby Column from the users table.
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How to avoid java.util.ConcurrentModificationException when iterating through and removing elements
...le of the second option, removing any strings with a length greater than 5 from a list:
List<String> list = new ArrayList<String>();
...
for (Iterator<String> iterator = list.iterator(); iterator.hasNext(); ) {
String value = iterator.next();
if (value.length() > 5) {
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How can I split up a Git commit buried in history?
... @wilhelmtell: I omitted my usual "potentially dangerous; see 'recovering from upstream rebase'" boilerplate because the OP explicitly said he hadn't pushed this history.
– Cascabel
Nov 29 '10 at 21:52
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What exactly are iterator, iterable, and iteration?
...ich defines a __getitem__ method that can take sequential indexes starting from zero (and raises an IndexError when the indexes are no longer valid). So an iterable is an object that you can get an iterator from.
An iterator is an object with a next (Python 2) or __next__ (Python 3) method.
Whene...
Remove/hide a preference from the screen
...have an activity which extends PreferenceActivity.
I'm loading preferences from the xml file.
But in some cases i need completely hide one of the preferences from the screen based on my app state. There is a setEnabled method, but it's not exactly what i want. I want to remove that preference from t...
How to overcome “datetime.datetime not JSON serializable”?
...org/python/1.10.1/api/bson/json_util.html
Example usage (serialization):
from bson import json_util
import json
json.dumps(anObject, default=json_util.default)
Example usage (deserialization):
json.loads(aJsonString, object_hook=json_util.object_hook)
Django
Django provides a native Djang...
How to generate and validate a software license key?
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Caveat: you can't prevent users from pirating, but only make it easier for honest users to do the right thing.
Assuming you don't want to do a special build for each user, then:
Generate yourself a secret key for the product
Take the user's name
Concaten...
Reactjs convert html string to jsx
... worth playing it safe to sanitize the content using the sanitize function from the dompurify npm package if you're getting that information from an external API.
– Barry Michael Doyle
Jan 27 at 8:10
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