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How to tell if browser/tab is active [duplicate]
I have a function that is called every second that I only want to run if the current page is in the foreground, i.e. the user hasn't minimized the browser or switched to another tab. It serves no purpose if the user isn't looking at it and is potentially CPU-intensive, so I don't want to just waste ...
jQuery counting elements by class - what is the best way to implement this?
What I'm trying to do is to count all of the elements in the current page with the same class and then I'm going to use it to be added onto a name for an input form. Basically I'm allowing users to click on a <span> and then by doing so add another one for more of the same type of items. But...
Font Awesome not working, icons showing as squares
... the new Font Awesome file. The problem is that when I try to use an icon, all that gets rendered on the page is a big square.
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How do I return to an older version of our code in Subversion?
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Basically you need to "merge backwards" - apply a diff between the current and previous version to the current version (so you end up with a working copy looking like the old version) and then commit again. So for example to go fr...
What's the difference between an exclusive lock and a shared lock?
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When the students are reading (shared locks) what is on the board:
They all can read what is on it, together => Multiple shared locks can co-exist.
The teacher waits for them to finish reading before she clears the board to write more => If one or more shared locks already exist, exclusive ...
What's the best way to limit text length of EditText in Android
...d:maxLength is equivalent to InputFilter.LengthFilter, so when programmatically changing it's filter, you have modified its XML filter as well.
– mr5
Aug 1 '15 at 3:00
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How to read lines of a file in Ruby
...ode to read lines from a file. But when reading a file , the contents are all in one line:
8 Answers
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List tables in a PostgreSQL schema
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In all schemas:
=> \dt *.*
In a particular schema:
=> \dt public.*
It is possible to use regular expressions with some restrictions
\dt (public|s).(s|t)
List of relations
Schema | Name | Type | Owner
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how to replicate pinterest.com's absolute div stacking layout [closed]
I am looking to replicate Pinterest.com's div layout, specifically how the number of columns adjusts to fit more/less on browser resize and the vertical stacking is not dependent on adjacent column heights. The source code shows that each div is position absolute. A co-founder has answered a Quora p...
Disabling of EditText in Android
...d instead but it contains bug and it does not work. It would be nice if we all star the issue here: code.google.com/p/android/issues/detail?id=2854
– Viktor Brešan
Mar 3 '11 at 13:13
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