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@Autowired and static method
I have @Autowired service which has to be used from within a static method. I know this is wrong but I cannot change the current design as it would require a lot of work, so I need some simple hack for that. I can't change randomMethod() to be non-static and I need to use this autowired bean. An...
~x + ~y == ~(x + y) is always false?
...sides are not equal, since they have at least that one bit that is flipped from each other.
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Convert integer into byte array (Java)
...Array(0xAABBCCDD);
Result is {0xAA, 0xBB, 0xCC, 0xDD}.
Its reverse is fromByteArray() or fromBytes():
int intValue = Ints.fromByteArray(new byte[]{(byte) 0xAA, (byte) 0xBB, (byte) 0xCC, (byte) 0xDD});
int intValue = Ints.fromBytes((byte) 0xAA, (byte) 0xBB, (byte) 0xCC, (byte) 0xDD);
Result i...
What is meant with “const” at end of function declaration? [duplicate]
...se you promise not to modify the instance, doesn't mean that what you read from it won't be modified by someone else holding a non-const reference to it.
– Dmitry Rubanovich
Apr 5 '15 at 21:12
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How to simulate the environment cron executes a script with?
...sudo su
env -i /bin/sh
or
sudo su
env -i /bin/bash --noprofile --norc
From http://matthew.mceachen.us/blog/howto-simulate-the-cron-environment-1018.html
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Split a string by spaces — preserving quoted substrings — in Python
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You want split, from the built-in shlex module.
>>> import shlex
>>> shlex.split('this is "a test"')
['this', 'is', 'a test']
This should do exactly what you want.
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How do I convert an HttpRequestBase into an HttpRequest object?
... take HttpRequestBase? If not, you can always get the current HttpRequest from HttpContext.Current.HttpRequest to pass on. However, I often wrap access to the HttpContext inside a class like mentioned in ASP.NET: Removing System.Web Dependencies for better unit testing support.
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R - Concatenate two dataframes?
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if you're rbind is coming from base for some strange reason: I used rbind.data.frame
– Boern
May 2 '18 at 12:42
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How to load images dynamically (or lazily) when users scrolls them into view
...urce, the page shows X number of <img> tags but they are not fetched from the server straight away ). What is this technique called, how does it work and in how many browsers does it work. And is there a jQuery plugin that can achieve this behavior with minimum coding.
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How to enumerate an object's properties in Python?
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Something to note from the Python docs, because dir() is supplied primarily as a convenience for use at an interactive prompt, it tries to supply an interesting set of names more than it tries to supply a rigorously or consistently defined set...