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How do you test to see if a double is equal to NaN?
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Use the static Double.isNaN(double) method, or your Double's .isNaN() method.
// 1. static method
if (Double.isNaN(doubleValue)) {
...
}
// 2. object's method
if (doubleObject.isNaN()) {
...
}
Simply doing:
if (var == Double.NaN) {
...
}
is not suffic...
What is the difference between angular-route and angular-ui-router?
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ui-router is a 3rd-party module and is very powerful. It supports everything the normal ngRoute can do as well as many extra functions.
Here are some common reason ui-router is chosen over ngRoute:
ui-router allows for nested views and multiple named views. This is very useful with...
What is the difference between char array and char pointer in C?
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Is something changed from 2012 to now. For a character array "s" prints entire array.. i.e., "hello"
– Bhanu Tez
May 9 '19 at 6:48
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What is the optimal length for an email address in a database?
Here is an extracted portion of my query, reflecting the EMAIL_ADDRESS column data type and property:
8 Answers
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How to get the full url in Express?
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The protocol is available as req.protocol. docs here
Before express 3.0, the protocol you can assume to be http unless you see that req.get('X-Forwarded-Protocol') is set and has the value https, in which case you know that's your protocol
The host comes from req.get('host') as G...
How do I make JavaScript beep?
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It's not possible to do directly in JavaScript. You'll need to embed a short WAV file in the HTML, and then play that via code.
An Example:
<script>
function PlaySound(soundObj) {
var sound = document.getElementById(soundObj);
sound.Play();
}
</script>
<embed src="success.wav...
Why does Iterable not provide stream() and parallelStream() methods?
...lt;Integer> would rather have their stream method return an IntStream, for example. But putting the stream() method this high up in the hierarchy would make that impossible. So instead, we made it really easy to make a Stream from an Iterable, by providing a spliterator() method. The implementa...
How can I undo git reset --hard HEAD~1?
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Pat Notz is correct. You can get the commit back so long as it's been within a few days. git only garbage collects after about a month or so unless you explicitly tell it to remove newer blobs.
$ git init
Initialized empty Git reposito...
AngularJS: How to clear query parameters in the URL?
...ularJS application needs to have access to the user's LinkedIn profile. In order to do that I need to redirect the user to a LinkedIn URL which contains a callback redirect_uri parameter which will tell LinkedIn to redirect the user back to my webapp and include a "code" query param in the URL. It's...
Cleanest way to get last item from Python iterator
What's the best way of getting the last item from an iterator in Python 2.6? For example, say
14 Answers
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