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Why would an Enum implement an Interface?
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It's required for extensibility -- if someone uses an API you've developed, the enums you define are static; they can't be added to or modified. However, if you let it implement an interface, the person using the API can develop their own enum using the same interface. You can t...
How do I remove an item from a stl vector with a certain value?
I was looking at the API documentation for stl vector, and noticed there was no method on the vector class that allowed the removal of an element with a certain value. This seems like a common operation, and it seems odd that there's no built in way to do this.
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How do I use reflection to call a generic method?
...an be greatly simplified by using a dynamic type instead of the reflection API.
To use this technique the type must be known from the actual object (not just an instance of the Type class). Otherwise, you have to create an object of that type or use the standard reflection API solution. You can cre...
Intersection and union of ArrayLists in Java
... post could use an update to demonstrate the benefits of the Java 8 Stream API.
– SME_Dev
Sep 2 '15 at 15:57
I get err...
How to overcome “datetime.datetime not JSON serializable”?
...cy, pymongo has built-in utilities to help with json serialization:
http://api.mongodb.org/python/1.10.1/api/bson/json_util.html
Example usage (serialization):
from bson import json_util
import json
json.dumps(anObject, default=json_util.default)
Example usage (deserialization):
json.loads(aJs...
Add a “hook” to all AJAX requests on a page
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})();
Some more docs of what you can do here with the addEventListener API here:
https://developer.mozilla.org/en-US/docs/Web/API/XMLHttpRequest/Using_XMLHttpRequest#Monitoring_progress
(Note this doesn't work <= IE8)
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callback to handle completion of pipe
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The 'end' event is now 'finish' Pipe events: nodejs.org/api/stream.html#stream_event_finish
– Pier-Luc Gendreau
Apr 16 '14 at 14:44
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How do I safely pass objects, especially STL objects, to and from a DLL?
...ed heap, and deallocated from the same heap. Fortunately, Windows provides APIs to help with this: GetProcessHeap will let you access the host EXE's heap, and HeapAlloc/HeapFree will let you allocate and free memory within this heap. It is important that you not use normal malloc/free as there is no...
How do I determine if a port is open on a Windows server? [closed]
...ted to check as I think this already answers my question. When I do telnet api-3t.sandbox.paypal.com 443 I get Connecting to api-3t.sandbox.paypal.com...Could not open connection to the host on port 443: Connect failed Is this because the firewall is blocking it?
– Popeye
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How do I encode and decode a base64 string?
...rning null in case of null is a very inconsistent behaviour. No other .net API that works with strings does that.
– t3chb0t
Jun 22 '18 at 6:10
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