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Performance optimization strategies of last resort [closed]
...sts by appending items to their ends. (The fix was to collect the items in arrays, and build the lists all at once.) The interesting thing is that these statements only cost (i.e. were on the call stack) 3/48 of the original time, so they were not in fact a big problem at the beginning. However, aft...
Add characters to a string in Javascript
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Only works for arrays. But I'm afraid that the OP uses for...in to traverse an array, so your suggestion probably works.
– Felix Kling
Apr 22 '11 at 11:11
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Why does dividing two int not yield the right value when assigned to double?
...alization affects the behavior of the right-hand side. (Also, reference-to-array initialization prevents array type decay, which is another example of similar behavior.) In all other cases the right-hand side completely ignores the left-hand side.
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Generic List - moving an item within the list
...]=item[newindex]; item[newindex]=temp; which seems more efficient on large arrays. Also Move(0,0) and Move(0,1) would be the same which is also odd. And also Move(0, Count -1) doesn't move the item to the end.
– Wouter
May 8 '19 at 21:17
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How to get all enum values in Java?
...:
enumValue.getDeclaringClass().getEnumConstants()
This will return an array of Enum objects, with each being one of the available options.
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How to find event listeners on a DOM node when debugging or from the JavaScript code?
... @tomdemuyt In jQuery, events are now stored in an internal data array rather than being accessible via .data('events') like they were before. To access the internal event data, use $._data(elem, 'events'). Note that this function is marked "for internal use only" in the jQuery source, so ...
Capture HTML Canvas as gif/jpg/png/pdf?
...me type (png is the only one that must be supported). If you would like an array of the supported types you can do something along the lines of this:
var imageMimes = ['image/png', 'image/bmp', 'image/gif', 'image/jpeg', 'image/tiff']; //Extend as necessary
var acceptedMimes = new Array();
for(i =...
What is the right way to check for a null string in Objective-C?
...that can be used as a stand in for nil when nil cannot be used (eg in an NSArray or NSDictionary value). So a use case might be where you had an NSArray of optional strings, some of which might be null, and you use [NSNull null] in the array for the null cases. In practice, the test is rarely neede...
XPath query to get nth instance of an element
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Weird that in these XPath queries these kinds of arrays start with 1, confused me.
– Ivotje50
Sep 15 '19 at 12:52
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Return a value from AsyncTask in Android [duplicate]
...gt; {
private MyImagesPagerFragment mimagesPagerFragment;
private ArrayList<ImageData> mImages = new ArrayList<ImageData>();
public AsyncGetUserImagesTask(MyImagesPagerFragment imagesPagerFragment) {
this.mimagesPagerFragment = imagesPagerFragment;
}
@Overr...