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Getting value of select (dropdown) before change
...
Combine the focus event with the change event to achieve what you want:
(function () {
var previous;
$("select").on('focus', function () {
// Store the current value on focus and on change
previous = this.value;
}).change(function() {
// Do som...
How do I run a simple bit of code in a new thread?
... Be careful about setting IsBackground to true. It probably does not do what you think it does. What it does, is configure whether the thread will be killed when all foreground threads have died, or whether the thread will keep the application alive. If you don't want your thread terminated mid-e...
warning: incompatible implicit declaration of built-in function ‘xyz’
...n page.
The exit function is defined in stdlib.h, though, so I don't know what's going on there.
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How do Trigonometric functions work?
...chool math, and probably college, we are taught how to use trig functions, what they do, and what kinds of problems they solve. But they have always been presented to me as a black box. If you need the Sine or Cosine of something, you hit the sin or cos button on your calculator and you're set. Whic...
Rails: Check output of path helper from console
...ecially with nested routes, it can get a little confusing to keep track of what URL you'll get for a given route helper method call. Is it possible to, using the Ruby console, see what link a given helper function will generate? For example, given a named helper like post_path(post) I want to see wh...
Update a record without first querying?
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@Gabriel Won't this update all properties though? What if I only want to modify a single one?
– David Pfeffer
Aug 15 '12 at 0:45
22
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Capture Image from Camera and Display in Activity
...tch (IOException e) {
e.printStackTrace();
}
}
}
What made it work is the MediaStore.Images.Media.getBitmap(this.getContentResolver(), Uri.parse(mCurrentPhotoPath)), which is different from the code from developer.android.com. The original code gave me a FileNotFoundExcepti...
Getting raw SQL query string from PDO prepared statements
... 2 Execute [2] select * from foo where i = 1
You can also get what you want if you set the PDO attribute PDO::ATTR_EMULATE_PREPARES. In this mode, PDO interpolate parameters into the SQL query and sends the whole query when you execute(). This is not a true prepared query. You will c...
Convert a negative number to a positive one in JavaScript
...u might want to even consider ~x+1. It's pretty quick, but not clear as to what it's doing. WHipped this up to show the difference: jsperf.com/absolute-int
– omgaz
Oct 15 '14 at 23:25
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Composer: how can I install another dependency without updating old ones?
...ge I want and it updates everything else, which is exactly the opposite of what I want.
– tremby
Jun 9 '14 at 21:39
3
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