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How to remove array element in mongodb?
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Is there call back with this?
– Oliver Dixon
Sep 1 '15 at 17:34
1
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When to use a key/value store such as Redis instead/along side of a SQL database?
...better to add Redis in this case? what is in database we add in a specific table just to have user id, comment(id), and/or timestamp, and use this directly. Won't this be the same?
– Tony Lin
Sep 1 '19 at 12:14
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Remove all special characters with RegExp
I would like a RegExp that will remove all special characters from a string. I am trying something like this but it doesn’t work in IE7, though it works in Firefox.
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How does an underscore in front of a variable in a cocoa objective-c class work?
...to-generated accessor (for the property) knows which ivar to use. Specifically, in your implementation file, your synthesize should look like this:
@synthesize missionName = _missionName;
More generically, this is:
@synthesize propertyName = _ivarName;
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How do I provide custom cast support for my class?
...ou want users to have to cast it or whether you want it to happen automagically. Generally, one direction will always work, that's where you use implicit, and the other direction can sometimes fail, that's where you use explicit.
The syntax is like this:
public static implicit operator dbInt64(Byt...
How to detect a Christmas Tree? [closed]
... can be broken down into about 3 steps. First I apply a threshold (or actually, the logical "or" of two separate and distinct thresholds). As with many of the other answers, I assumed that the Christmas tree would be one of the brighter objects in the scene, so the first threshold is just a simple...
Set attributes from dictionary in python
...key])
Update
As Brent Nash suggests, you can make this more flexible by allowing keyword arguments as well:
class Employee(object):
def __init__(self, *initial_data, **kwargs):
for dictionary in initial_data:
for key in dictionary:
setattr(self, key, dicti...
Is it possible to send a variable number of arguments to a JavaScript function?
...%s dog.', ...arr); is not yet supported. You can find an ES6 compatibility table here.
Note also the use of for...of, another ES6 addition. Using for...in for arrays is a bad idea.
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Is it good practice to use java.lang.String.intern()?
...5x less memory than rolling your own object pool
Be sure to tune -XX:StringTableSize (the default is probably too small; set a Prime number)
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Why does 'continue' behave like 'break' in a Foreach-Object?
...each that helps to make this conversion easy and make mistakes easy, too). All continues should be replaced with return.
P.S.: Unfortunately, it is not that easy to simulate break in ForEach-Object.
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