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Mongoose query where value is not null
...null } })
A few links that might help:
The mongoose query api
The docs for mongo query operators
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Read-only and non-computed variable properties in Swift
...tract that differs depending on who the caller is), here's what I would do for now:
class Clock {
struct Counter {
var hours = 0;
var minutes = 0;
var seconds = 0;
mutating func inc () {
if ++seconds >= 60 {
seconds = 0
...
A proper wrapper for console.log with correct line number?
...n, and place a global isDebug switch. I would like to wrap console.log for more convenient usage.
23 Answers
...
List goals/targets in GNU make that contain variables in their definition
...ng else seems to be reasonable and GNU make doesn't have a convenient flag for what I want.
– BitShifter
Sep 8 '10 at 14:47
6
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Convert a Scala list to a tuple?
..." of a tuple must be encoded in its type, and hence known at compile time. For example, (1,'a',true) has the type (Int, Char, Boolean), which is sugar for Tuple3[Int, Char, Boolean]. The reason tuples have this restriction is that they need to be able to handle a non-homogeneous types.
...
What do *args and **kwargs mean? [duplicate]
...tion to accept an arbitrary number of arguments and/or keyword arguments.
For example, if you wanted to write a function that returned the sum of all its arguments, no matter how many you supply, you could write it like this:
def my_sum(*args):
return sum(args)
It’s probably more commonly ...
Why does “_” (underscore) match “-” (hyphen)?
I have to look for a PDF manual using this query:
2 Answers
2
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Programmatically obtain the Android API level of a device?
... API level programatically by the system constant (Build.VERSION.SDK_INT). For example you can run some piece of code which requires newer API in the following way (it will execute if the current device's API level is at least 4)
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.DONUT) {
}
To ...
What is the difference between shallow copy, deepcopy and normal assignment operation?
...pies:
The difference between shallow and deep copying is only relevant for
compound objects (objects that contain other objects, like lists or
class instances):
A shallow copy constructs a new compound object and then (to the extent possible) inserts references into it to the obje...
Mocking a class: Mock() or patch()?
...ass(object):
... def __init__(self):
... print 'Created MyClass@{0}'.format(id(self))
...
>>> def create_instance():
... return MyClass()
...
>>> x = create_instance()
Created MyClass@4299548304
>>>
>>> @mock.patch('__main__.MyClass')
... def create_ins...