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How to find the length of a string in R
... @hadley Indeed, or for that matter any character vector with one or more NAs. (Though this is documented to be so).
– Gavin Simpson
Mar 19 '14 at 16:19
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Using a 'using alias = class' with generic types? [duplicate]
So sometimes I want to include only one class from a namespace rather than a whole namespace, like the example here I create a alias to that class with the using statement:
...
What's the easiest way to escape HTML in Python?
cgi.escape seems like one possible choice. Does it work well? Is there something that is considered better?
9 Answers
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How to show soft-keyboard when edittext is focused
...I had the same problem. Immediately after editText VISIBILITY change from GONE to VISIBLE, I had to set the focus and display the soft keyboard. I achieved this using the following code:
new Handler().postDelayed(new Runnable() {
public void run() {
// ((EditText) findViewById(R.id.et_f...
How can I update window.location.hash without jumping the document?
...orkaround by using the history API on modern browsers with fallback on old ones:
if(history.pushState) {
history.pushState(null, null, '#myhash');
}
else {
location.hash = '#myhash';
}
Credit goes to Lea Verou
sha...
Change key pair for ec2 instance
...i.e. you lost your private key).
If you still have SSH access, please use one of the answers below.
https://docs.aws.amazon.com/AWSEC2/latest/UserGuide/ec2-key-pairs.html#replacing-lost-key-pair
Here is what I did, thanks to Eric Hammond's blog post:
Stop the running EC2 instance
Detach its /de...
Unable to generate an explicit migration in entity framework
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Thomas's answer was the useful one for my similar case.
– Tarek Shawadfy
Dec 2 '15 at 10:36
2
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Are string.Equals() and == operator really same? [duplicate]
... apparent contradictions that appear in the question are caused because in one case the Equals function is called on a string object, and in the other case the == operator is called on the System.Object type. string and object implement equality differently from each other (value vs. reference respe...
How can I return pivot table output in MySQL?
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That's a really neat one. Do you know if this is standards compliant across other platforms (like Postgres)?
– itsols
Oct 9 '14 at 13:37
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Dismiss keyboard by touching background of UITableView
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This is easily done by creating a UITapGestureRecognizer object (by default this will detect a "gesture" on a single tap so no further customization is required), specifying a target/action for when the gesture is fired, and then attaching t...