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How to get RelativeLayout working with merge and include?
...source code shows that id, visibility and layout_* tags overriding are not applied when the root element is a merge tag, unfortunately. As you can't have a View as the xml root, we must have an extra ViewGroup there...
– Rafael Nobre
Jul 24 '13 at 13:20
...
What's the difference between Task.Start/Wait and Async/Await?
... windows messages, each one of which does a little bit of work? Now what happens? You return control to the message loop, it starts pulling messages out of the queue, doing a little bit of work each time, and the last job that's done is "execute the continuation of the task". No extra thread!
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Bulk insert with SQLAlchemy ORM
...e in performance on the server side resulting in about 10x more inserts/s. Apparently is bulk-loading using \copy (or COPY on the server) using a packing in communicating from client-to-server a LOT better than using SQL via SQLAlchemy. More info: Large bulk insert performance difference PostgreSQL ...
Python __str__ versus __unicode__
...s override __unicode__() more frequently than __str__() but it doesn't appear to be consistent. Are there specific rules when it is better to implement one versus the other? Is it necessary/good practice to implement both?
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Sending command line arguments to npm script
...ol
Should output:
{ myVar: 'something' }
Update: Using npm 3.10.3, it appears that it lowercases the process.env.npm_config_ variables? I'm also using better-npm-run, so I'm not sure if this is vanilla default behavior or not, but this answer is working. Instead of process.env.npm_config_myVar,...
In Vim is there a way to delete without putting text in the register?
...
It's handy to have an easy mapping which lets you replace the current selection with buffer.
For example when you put this in your .vimrc
vmap r "_dP // it's a capital 'p' on the end
then, after copying something into register (i.e. with 'y'),...
How to check edittext's text is email address or not?
...lidation Example" />
</RelativeLayout>
Step 2:
import android.app.Activity;
import android.os.Bundle;
import android.text.Editable;
import android.text.TextWatcher;
import android.widget.EditText;
Step 3:
public class MainActivity extends Activity {
private EditText email;
private ...
git: How to ignore all present untracked files?
... don't have a .gitignore file yet your gitignore will ignore itself! This happens because the file .gitignore gets created before the git status --porcelain is executed. So if you don't have a .gitignore file yet I recommend using:
echo "$(git status --porcelain | grep '^??' | cut -c4-)" > .giti...
django urls without a trailing slash do not redirect
I've got two applications located on two separate computers. On computer A, in the urls.py file I have a line like the following:
...
PHP: How to generate a random, unique, alphanumeric string for use in a secret link?
...uations where the quality of your randomness can affect the security of an application. In particular, rand() and uniqid() are not cryptographically secure random number generators. See Scott's answer for a secure alternative.
If you do not need it to be absolutely unique over time:
md5(uniqid(ra...