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Sending emails with Javascript
...tents of the textarea in the email. Also a good method to hide your email from spam harvesters.
– Gordon Bell
Nov 7 '08 at 3:49
1
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Image fingerprint to compare similarity of many images
...mage - and can be implemented quite efficiently. Subtracting one histogram from another will produce a new historgram which you can process to decide how similar two images are. Histograms, because the only evaluate the distribution and occurrence of luminosity/color information handle affine transf...
Stateless vs Stateful - I could use some concrete information
...
I suggest that you start from a question in StackOverflow that discusses the advantages of stateless programming. This is more in the context of functional programming, but what you will read also applies in other programming paradigms.
Stateless pr...
Is it possible to install another version of Python to Virtualenv?
...n/python)
--clear Clear out the non-root install and start from scratch
--no-site-packages Don't give access to the global site-packages dir to
the virtual environment
--unzip-setuptools Unzip Setuptools or Distribute when installing it
--relocatab...
What are all the uses of an underscore in Scala?
...
Example showing why foo(_) and foo _ are different:
This example comes from 0__:
trait PlaceholderExample {
def process[A](f: A => Unit)
val set: Set[_ => Unit]
set.foreach(process _) // Error
set.foreach(process(_)) // No Error
}
In the first case, process _ represents a met...
View not attached to window manager crash
...d.view.WindowLeaked exception will be thrown. This exception usually comes from dialogs that are still active when the activity is finishing.
Try this fixed code:
public class YourActivity extends Activity {
private void showProgressDialog() {
if (pDialog == null) {
pDial...
Explain Morris inorder tree traversal without using stacks or recursion
...eed to backtrack to -> we find the node which we will need to backtrack from and update its link to the parent node.
When we backtrack? When we cannot go further. When we cannot go further? When no left child's present.
Where we backtrack to? Notice: to SUCCESSOR!
So, as we follow nodes along ...
Boolean operators && and ||
...o see if all or any of the comparisons are true, respectively. The results from these functions are sure to be length 1 so they are appropriate for use in if clauses, while the results from the vectorized comparison are not. (Though those results would be appropriate for use in ifelse.
One final d...
Do zombies exist … in .NET?
... didn't know what a "zombie thread" was, so I asked. The impression I got from his explanation is that a zombie thread is a thread that has terminated but somehow still holds onto some resources. An example he gave of how a zombie thread could break a system was a thread begins some procedure afte...
How to use gradle zip in local system without downloading when using gradle-wrapper
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From gradle-wrapper documentation, I found in section 61.1. Configuration
If you don't want any download to happen when your project is build
via gradlew, simply add the Gradle distribution zip to your version
control...