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How can I rethrow an exception in Javascript, but preserve the stack?
...'re often the same because of the idiom
throw new Error("message");
and if you use the code just as you've written it, the stack property will not be changed when you rethrow the error.
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PopupWindow - Dismiss when clicked outside
...with my activity (say scrolling on my list). I can scroll through my list and the PopupWindow is still there.
15 Answers
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Hash String via SHA-256 in Java
...;
import java.security.NoSuchAlgorithmException;
import java.nio.charset.StandardCharsets;
import java.math.BigInteger;
public class CryptoHash {
public static void main(String[] args) throws NoSuchAlgorithmException {
MessageDigest md = MessageDigest.getInstance("SHA-256");
String text =...
What does the PHP error message “Notice: Use of undefined constant” mean?
...It's not "bizarre"... It's "backward compatible". PHP originally allowed and even promoted using unquoted strings as keys. (Okay, maybe it is still "bizarre". :-)
– Brian White
Oct 12 '12 at 19:52
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What is a callback?
What's a callback and how is it implemented in C#?
11 Answers
11
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Convert Long into Integer
...s not go from Long to int directly, so
Integer i = (int) (long) theLong;
And in both situations, you might run into overflows (because a Long can store a wider range than an Integer).
Java 8 has a helper method that checks for overflow (you get an exception in that case):
Integer i = theLong == ...
Set “this” variable easily?
I have a pretty good understanding of Javascript, except that I can't figure out a nice way to set the "this" variable. Consider:
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How to get maximum value from the Collection (for example ArrayList)?
... list. E.g. suppose the arrayList stored values are : 10, 20, 30, 40, 50 and the max
value would be 50 .
15 Answers
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vim - How to delete a large block of text without counting the lines?
...eleting (or copying) large blocks of text. One can count the lines of text and say (for example) 50dd to delete 50 lines.
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How to prevent http file caching in Apache httpd (MAMP)
... am developing a single page Javascript application in MAMP. My JavaScript and HTML template files are getting cached between requests.
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