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Check if a given key already exists in a dictionary and increment it
...ns import defaultdict
my_dict = defaultdict(int)
my_dict[key] += 1
will do what you want.
For regular Python dicts, if there is no value for a given key, you will not get None when accessing the dict -- a KeyError will be raised. So if you want to use a regular dict, instead of your code you wou...
Synchronous request in Node.js
...tion(next, res) {
...
})
If you need to pass scope along then just do something like this
.then(function(next, d) {
http.get({}, function(res) {
next(res, d);
});
})
.then(function(next, res, d) { })
...
})
...
How do you split and unsplit a window/view in Eclipse IDE?
How do you split a window/view in Eclipse IDE? I want to edit code while viewing the different code in the same file.
11 An...
Is there an eval() function in Java? [duplicate]
...
Loading an entire JavaScript interpreter to do some math seems like a huge waste. But you're right, it works, especially if efficiency isn't a priority.
– Sasha Chedygov
Apr 9 '10 at 4:21
...
Thread pooling in C++11
...r own dynamic threading pool. These threads always run, waiting for job to do.
I apologize if there are some syntax errors, I typed these code and and I have a bad memory. Sorry that I cannot provide you the complete thread pool code, that would violate my job integrity.
Edit: to terminate the poo...
When do you use map vs flatMap in RxJava?
When do you use map vs flatMap in RxJava ?
10 Answers
10
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How to make a class property? [duplicate]
...
Here's how I would do this:
class ClassPropertyDescriptor(object):
def __init__(self, fget, fset=None):
self.fget = fget
self.fset = fset
def __get__(self, obj, klass=None):
if klass is None:
klass...
Error message Strict standards: Non-static method should not be called statically in php
...methods (and Singletons) are death to testability.
Also note that you are doing way too much work in the constructor, especially all that querying shouldn't be in there. All your constructor is supposed to do is set the object into a valid state. If you have to have data from outside the class to d...
“Treat all warnings as errors except…” in Visual Studio
...t;/PropertyGroup>
Note: 612 and 618 are both warnings about Obsolete, don't know the difference but the project i'm working on is reporting Obsolete with warning 618.
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Remove All Event Listeners of Specific Type
... addEventListener() . All the resources I'm seeing are saying you need to do this:
11 Answers
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