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How do I detect whether a Python variable is a function?
...u can read the discussion here: http://bugs.python.org/issue10518. You can do this with:
callable(obj)
If this is for Python 3.x but before 3.2, check if the object has a __call__ attribute. You can do this with:
hasattr(obj, '__call__')
The oft-suggested types.FunctionTypes approach is not co...
How do I pass multiple parameters into a function in PowerShell?
... I prefer using the paranthesis and comma separated.. is it possible to do this in powershell?
– sam yi
Mar 19 '14 at 4:27
9
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Should commit messages be written in present or past tense? [closed]
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I think of these messages as they appear to other developers. They don't yet have the changes applied, and there is the implicit question, "what will applying this changeset/patch do?" It will "Fix the XXX bug in YYY"!
For other verbs writing them as a command seems more natural, and works...
C++ performance vs. Java/C#
...ptimize certain parts away that just aren't safe for the C/C++ compiler to do. When you have access to pointers there's a lot of optimizations that just aren't safe.
Also Java and C# can do heap allocations more efficiently than C++ because the layer of abstraction between the garbage collector and...
What is Domain Driven Design (DDD)? [closed]
I keep seeing DDD (Domain Driven Design) being used a lot in articles - I have read the Wikipedia entry about DDD but still can't figure out what it actually is and how I would go about implementing it in creating my sites?
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How do I check if a string contains another string in Objective-C?
... ([string rangeOfString:@"bla"].location == NSNotFound) {
NSLog(@"string does not contain bla");
} else {
NSLog(@"string contains bla!");
}
The key is noticing that rangeOfString: returns an NSRange struct, and the documentation says that it returns the struct {NSNotFound, 0} if the "haystack"...
Why are there no ++ and -- operators in Python?
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It's not because it doesn't make sense; it makes perfect sense to define "x++" as "x += 1, evaluating to the previous binding of x".
If you want to know the original reason, you'll have to either wade through old Python mailing lists or ask som...
What is the proper way to use the node.js postgresql module?
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I'm the author of node-postgres. First, I apologize the documentation has failed to make the right option clear: that's my fault. I'll try to improve it. I wrote a Gist just now to explain this because the conversation grew too long for Twitter.
Using pg.connect is the way to...
Angular.js programmatically setting a form field to dirty
... my form with a value and I would like to set the field state to $dirty . Doing something like:
11 Answers
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From inside of a Docker container, how do I connect to the localhost of the machine?
So I have a Nginx running inside a docker container, I have a mysql running on localhost, I want to connect to the MySql from within my Nginx. The MySql is running on localhost and not exposing a port to the outside world, so its bound on localhost, not bound on the ip address of the machine.
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