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How to find out which view is focused?
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It is possible to get hosting Activity from a View and call getCurrentFocus(), but not that reliable.
– Eido95
Dec 29 '16 at 12:19
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What is the purpose of a plus symbol before a variable?
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How is it different from .parseInt() ?
– Daniel W.
Apr 10 '19 at 13:33
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Combining node.js and Python
...ed about speed, what is the most elegant way how to call a Python "worker" from node.js in an asynchronous non-blocking way?
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IntelliJ gives Fatal Error: Unable to find package java.lang in classpath or bootclasspath
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Somehow the JDK language jars were removed from the classpath. All I had to do was reapply the JSDK home path.
Goto:
File -> Project Structure -> Platform Settings -> SDKs
Re-apply the JSDK home path.
Doing this added about 15 jars to the classpath. Appar...
Why does appending “” to a String save memory?
...o.
EDIT: To answer your supplementary question, constructing a new String from the substring will reduce your memory consumption, provided you bin any references to the original String.
NOTE (Jan 2013). The above behaviour has changed in Java 7u6. The flyweight pattern is no longer used and substr...
Two-way encryption: I need to store passwords that can be retrieved
...ption cycle takes about 1/2 second on my machine).
Now, as to point 3 from the first list, what that would give you is a function like this:
function makeKey($userKey, $serverKey, $userSuppliedKey) {
$key = hash_hmac('sha512', $userKey, $serverKey);
$key = hash_hmac('sha512', $key, $us...
window.onload vs document.onload
...u should use window.onload because it is
good to separate your structure from the action.
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Adding a user to a group in django
...Group model with the name of the group, then add the user to the user_set
from django.contrib.auth.models import Group
my_group = Group.objects.get(name='my_group_name')
my_group.user_set.add(your_user)
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Why not use HTTPS for everything?
... that the attacker doesn't need the username/password if he has the cookie from an authenticated session.
– rook
Apr 30 '10 at 18:44
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Scroll to bottom of div?
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you need [0] to get dom element from jquery element to get scrollHeight
– Jimmy Bosse
Jul 15 '12 at 22:18
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