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Accessing members of items in a JSONArray with Java
...ing json with java. I'm not sure how to access string values within a JSONArray. For instance, my json looks like this:
6 ...
Get Character value from KeyCode in JavaScript… then trim
... few key codes so I simply listed all the corresponding values in a static array so I could simply convert the number 65 into A using keyboardMap[65]
Not all key codes map to a printable character so some other identifiable string is returned.
You may need to modify the array to suit your needs an...
handlerbars.js check if list is empty
...
If you have something that you want to display once and only if the array has data, use
{{#if items.length}}
//Render
{{/if}}
.length will return 0 for empty arrays so we have achieved a real falsey value.
shar...
Can we omit parentheses when creating an object using the “new” operator?
...eanings. This comes up when you try to access a member of the result.
new Array.length // fails because Array.length is the number 1, not a constructor
new Array().length // 0
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How fast is D compared to C++?
...ually got D going faster for LDC/clang++, operating on the assumption that arrays must be allocated dynamically (xs and associated scalars). See below for some numbers.
Questions for the OP
Is it intentional that the same seed be used for each iteration of C++, while not so for D?
Setup
I have t...
Pick a random value from an enum?
...ould suggest is caching the result of values() because each call copies an array. Also, don't create a Random every time. Keep one. Other than that what you're doing is fine. So:
public enum Letter {
A,
B,
C,
//...
private static final List<Letter> VALUES =
Collections.unmodifi...
Decode Base64 data in Java
... and decoders, and for using different classes as inputs and outputs (byte arrays, strings, ByteBuffers, java.io streams).
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How to change the href for a hyperlink using jQuery
...ugh the nodelist: (example)
var anchors = document.querySelectorAll('a');
Array.prototype.forEach.call(anchors, function (element, index) {
element.href = "http://stackoverflow.com";
});
If you want to change the href value of all <a> elements that actually have an href attribute, select...
Android – Listen For Incoming SMS Messages
...ge exceeds that limit, it can be split into multiple messages, parts. That array is the array of parts that you need to concatenate to get the complete message. Your Receiver will only ever get one complete message at a time; it just might be in multiple parts.
– Mike M.
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Python: Select subset from list based on index set
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I see 2 options.
Using numpy:
property_a = numpy.array([545., 656., 5.4, 33.])
property_b = numpy.array([ 1.2, 1.3, 2.3, 0.3])
good_objects = [True, False, False, True]
good_indices = [0, 3]
property_asel = property_a[good_objects]
property_bsel = property_b[good_indices]
...