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Delete a key from a MongoDB document using Mongoose
...n javascript object and that's why you can't use delete operator.(Or unset from 'lodash' library).
Your options are to set doc.path = null || undefined or to use Document.toObject() method to turn mongoose doc to plain object and from there use it as usual.
Read more in mongoose api-ref:
http://m...
How do I make and use a Queue in Objective-C?
...ay (QueueAdditions)
// Queues are first-in-first-out, so we remove objects from the head
- (id) dequeue {
// if ([self count] == 0) return nil; // to avoid raising exception (Quinn)
id headObject = [self objectAtIndex:0];
if (headObject != nil) {
[[headObject retain] autorelease]...
How to resolve git stash conflict without commit?
.... You can execute it without any parameters and Git will remove everything from the index. You don't have to execute git add before.
Finally, remove the stash with git stash drop, because Git doesn't do that on conflict.
Translated to the command-line:
$ git stash pop
# ...resolve conflict(s)
$...
Python glob multiple filetypes
...
from glob import glob
files = glob('*.gif')
files.extend(glob('*.png'))
files.extend(glob('*.jpg'))
print(files)
If you need to specify a path, loop over match patterns and keep the join inside the loop for simplicity:
f...
NSDate get year/month/day
...r] components:NSCalendarUnitDay | NSCalendarUnitMonth | NSCalendarUnitYear fromDate:[NSDate date]];
That generates an NSDateComponents object containing the day, month, and year from the current system calendar for the current day. (Note: this isn't necessarily the current user-specified calendar,...
Explain how finding cycle start node in cycle linked list work?
... tortoise) such that Xi = X2i. Let mu represent the number of steps to get from X0 to the start of the cycle, and let lambda represent the length of the cycle. Then i = mu + alambda, and 2i = mu + blambda, where a and b are integers denoting how many times the tortoise and hare went around the cycl...
What is Common Gateway Interface (CGI)?
...is a "common" gateway interface for everything. It is so trivial and naive from the name. I feel that I understood this and I felt this every time I encountered this word. But frankly, I didn't. I'm still confused.
...
Java: Get first item from a collection
... "first" item in a Collection because it is .. well simply a collection.
From the Java doc's Collection.iterator() method:
There are no guarantees concerning the order in which the elements are returned...
So you can't.
If you use another interface such as List, you can do the following:
S...
What does “:=” do?
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@TigOldBitties, Good gotcha from Erwin down there.
– Pacerier
Apr 6 '15 at 14:27
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Spring MVC - How to get all request params in a map in Spring controller?
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If you are looking to process list values, like from a group of checkboxes with the same name, use: @RequestParam MultiValueMap<String, String>
– IcedDante
Jan 5 '15 at 17:11
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