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get dictionary value by key
...ile", out xmlfile)) {
// the key isn't in the dictionary.
return; // or whatever you want to do
}
// xmlfile is now equal to the value
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'this' vs $scope in AngularJS controllers
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"How does this and $scope work in AngularJS controllers?"
Short answer:
this
When the controller constructor function is called, this is the controller.
When a function defined on a $scope object is called, this is the "scope in effect when the f...
What is the difference between instanceof and Class.isAssignableFrom(…)?
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i don't get it - please elaborate on why we can't write a instanceof Bref.getClass(). how can this be the accepted answer with so little explanation (or its lack thereof)?
– Eliran Malka
Mar 28 '13 at 12:58
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Positive Number to Negative Number in JavaScript?
...itive
-Math.abs(num) => Always negative
You do realize however, that for your code
if($this.find('.pdxslide-activeSlide').index() < slideNum-1){ slideNum = -slideNum }
console.log(slideNum)
If the index found is 3 and slideNum is 3,
then 3 < 3-1 => false
so slideNum remains positive...
Break promise chain and call a function based on the step in the chain where it is broken (rejected)
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The reason your code doesn't work as expected is that it's actually doing something different from what you think it does.
Let's say you have something like the following:
stepOne()
.then(stepTwo, handleErrorOne)
.then(stepThree, handleErrorTwo)
.then(n...
What is the difference between Culture and UICulture?
Could someone give me a bit more information on the difference between Culture and UICulture within the .NET framework? What they do and when to use what?
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Appending a line to a file only if it does not already exist
...e
-F pattern is a plain string
https://linux.die.net/man/1/grep
Edit:
incorporated @cerin and @thijs-wouters suggestions.
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What do the terms “CPU bound” and “I/O bound” mean?
... bound if it would go faster if the CPU were faster, i.e. it spends the majority of its time simply using the CPU (doing calculations). A program that computes new digits of π will typically be CPU-bound, it's just crunching numbers.
A program is I/O bound if it would go faster if the I/O subsyste...
Should I avoid 'async void' event handlers?
I know it is considered generally a bad idea to use fire-and-forget async void methods to start tasks, because there is no track of the pending task and it is tricky to handle exceptions which might be thrown inside such a method.
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How does lock work exactly?
I see that for using objects which are not thread safe we wrap the code with a lock like this:
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