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Check if object exists in JavaScript
...sts, typeof o == "object" may be a good idea, except if you don't consider arrays objects, as this will also reported to be the type of object which may leave you a bit confused. Not to mention that typeof null will also give you object which is simply wrong.
The primal area where you really should...
Adding gif image in an ImageView in android
...cted int transIndex; // transparent color index
// LZW decoder working arrays
protected short[] prefix;
protected byte[] suffix;
protected byte[] pixelStack;
protected byte[] pixels;
protected Vector<GifFrame> frames; // frames read from current file
protected int f...
open read and close a file in 1 line of code
...pen("/etc/hosts","r") as f: x = f.read().splitlines()
which gives you an array x containing the lines, and can be printed like so:
for line in x: print line
These one-liners are very helpful for maintenance - basically self-documenting.
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Java - Method name collision in interface implementation
... same underlying data.
For the former case... suppose you really want an array of integers and an array of strings. Instead of inheriting from both List<Integer> and List<String>, you should have one member of type List<Integer> and another member of type List<String>, and...
Java 8 Lambda function that throws exception?
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Then, for example, if you have a list:
final List<String> list = Arrays.asList("A", "B", "C");
If you want to consume it (eg. with forEach) with some code that throws exceptions, you would traditionally have set up a try/catch block:
final Consumer<String> consumer = aps -> {
...
Adding IN clause List to a JPA Query
...so note mentioning: the type of your param has to be an collection (not an array) of objects. The objects must match the type of the field. .toString() is no substitute for class String
– dube
Mar 21 '14 at 10:47
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Inspecting standard container (std::map) contents with gdb
...of gdb helper functions for lots of hard-to-retrieve data, e.g. write_cuda_array_as_image(). Note that some compilers will strip out any functions that aren't called, so I place a call to each helper function after my main's "return 0;". Also declaring them with extern "C" makes calling them from ...
Convert string to variable name in JavaScript
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You can access the window object as an associative array and set it that way
window["onlyVideo"] = "TEST";
document.write(onlyVideo);
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How do I save a stream to a file in C#?
...h a common case I'm surprised its not in .NET. I see people creating byte arrays the size of the entire file, which can cause problems for big files.
– Tilendor
Dec 7 '10 at 17:00
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jQuery: select all elements of a given class, except for a particular Id
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I'll just throw in a JS (ES6) answer, in case someone is looking for it:
Array.from(document.querySelectorAll(".myClass:not(#myId)")).forEach((el,i) => {
doSomething(el);
}
Update (this may have been possible when I posted the original answer, but adding this now anyway):
document.queryS...