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php stdClass to array
...were using json_decode() on an array. json_decode should be used on a JSON string. Therefore, if we encode it as a JSON string first (json_encode) and then decode it (using our JSON string), then it works fine.
– h2ooooooo
Sep 2 '13 at 15:56
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difference and when to use getApplication(), getApplicationContext(), getBaseContext() and someClass
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@committedandroider because activity context contains extra info for the chosen theme, so when views are created in code then the correct theme will be applied automatically. For more info, you may read this
– waqaslam
Nov 30 '14 at 6:51
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What does %w(array) mean?
... shortcut for ["foo", "bar"]. Meaning it's a notation to write an array of strings separated by spaces instead of commas and without quotes around them. You can find a list of ways of writing literals in zenspider's quickref.
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Storing Python dictionaries
..., the foundational unit in json is the "Object", which is defined as { <string> : <value>}. Look familiar? The json module in the standard library supports every Python native type and can easily be extended with a minimal knowledge of json to support user-defined classes. The JSON homep...
Create an array with same element repeated multiple times
...ate (05/11/2019):
Another way, without using fill or from, that works for string of any length:
Array.apply(null, Array(3)).map(_ => 'abc') // ['abc', 'abc', 'abc']
Same as above answer. Adding for sake of completeness.
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Assignment inside lambda expression in Python
...tes, but you can also use a.count(""), for example, to only restrict empty strings.
Needless to say, you can do this but you really shouldn't. :)
Lastly, you can do anything in pure Python lambda: http://vanderwijk.info/blog/pure-lambda-calculus-python/
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How to open, read, and write from serial port in C?
... read(3).
#include <errno.h>
#include <fcntl.h>
#include <string.h>
#include <termios.h>
#include <unistd.h>
int
set_interface_attribs (int fd, int speed, int parity)
{
struct termios tty;
if (tcgetattr (fd, &tty) != 0)
{
e...
Invalidating JSON Web Tokens
...exists / is authorized to access the api endpoint. So you aren't doing any extra db queries by comparing the jwt token version number with the one on the user.
– DaftMonk
Jul 7 '14 at 5:58
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NSLog the method name with Objective-C in iPhone
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print(__FUNCTION__) // Swift
NSLog(@"%@", NSStringFromSelector(_cmd)); // Objective-C
Swift 3 and above
print(#function)
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What is a NullPointerException, and how do I fix it?
...your code can help avoid null pointer exception. eg when checking an input string with a constant string you should start with the constant string like here: if ("SomeString".equals(inputString)) {} //even if inputString is null no exception is thrown. So there are a bunch of things that you can do ...