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JavaScript - cannot set property of undefined
...ists and if not initialize it...
var a = "1",
b = "hello",
c = { "100" : "some important data" },
d = {};
if (d[a] === undefined) {
d[a] = {}
};
d[a]["greeting"] = b;
d[a]["data"] = c;
console.debug (d);
...
Continuous Integration for Ruby on Rails? [closed]
...sign and is very fast. Plus, for the bottom tier it's actually free (up to 100 builds per month) so it ended up being cheaper than Drone.io.
Original Answer
Drone.io
I just setup our main Ruby on Rails application with http://drone.io/. Was a piece of cake and it's got a great interface. I'd say ...
Use tab to indent in textarea
... }
enabled = true;
return true;
});
});
textarea
{
width: 100%;
height: 100px;
tab-size: 4;
}
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<textarea class="tabSupport">if (something)
{
// This textarea has "ta...
How to make Eclipse behave well in the Windows 7 taskbar?
...
100
Specify the latest available Java VM in your eclipse.ini. I.e.:
-vm
jdk1.6.0_10\jre\bin\clien...
Optimal way to concatenate/aggregate strings
...
It is far better since this approach only works for 100 values maximum.
– Romano Zumbé
Oct 15 '14 at 11:35
...
Gradients on UIView and UILabels On iPhone [duplicate]
...yer:
UIView *view = [[[UIView alloc] initWithFrame:CGRectMake(0, 0, 320, 100)] autorelease];
CAGradientLayer *gradient = [CAGradientLayer layer];
gradient.frame = view.bounds;
gradient.colors = [NSArray arrayWithObjects:(id)[[UIColor blackColor] CGColor], (id)[[UIColor whiteColor] CGColor], nil...
Check if element is visible in DOM
...iewport.style.position = 'absolute';
leftOfViewport.style.right = '100000px';
leftOfViewport.textContent = 'leftOfViewport';
div.appendChild(rightOfViewport = leftOfViewport.cloneNode(false));
rightOfViewport.style.right = '0';
rightOfViewport.style.left...
Calculating distance between two points, using latitude longitude?
... Math.atan2(Math.sqrt(a), Math.sqrt(1 - a));
double distance = R * c * 1000; // convert to meters
double height = el1 - el2;
distance = Math.pow(distance, 2) + Math.pow(height, 2);
return Math.sqrt(distance);
}
...
How to set initial size of std::vector?
...erry Coffin
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...
What happens when there's insufficient memory to throw an OutOfMemoryError?
... stackoverflow.com/questions/9261215/… : True but if the JVM reserved 100 units of memory to do that, and spent 1 unit on the first OOM, what happens if in my OOM catch block I do e.printStackTrace()? e.printStackTrace() requires memory too. Then the JVM would spend another unit of memory to th...