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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...
How can I parse JSON with C#?
...ng how to parse JSON string values. Didn't want it to look complex with escaping double quotes. In real code we usually have JSON strings obtained from somewhere as variables or passed as parameters.
– Dmitry Pavlov
Jan 3 '16 at 20:26
...
Check if a Class Object is subclass of another Class Object in Java
I'm playing around with Java's reflection API and trying to handle some fields. Now I'm stuck with identifying the type of my fields. Strings are easy, just do myField.getType().equals(String.class) . The same applies for other non-derived classes. But how do I check derived classes? E.g. LinkedLi...
Programmatically add custom event in the iPhone Calendar
...
Yes there still is no API for this (2.1). But it seemed like at WWDC a lot of people were already interested in the functionality (including myself) and the recommendation was to go to the below site and create a feature request for this. If there...
retrieve links from web page using python and BeautifulSoup [closed]
...s much better to use lxml. Despite its name, it is also for parsing and scraping HTML. It's much, much faster than BeautifulSoup, and it even handles "broken" HTML better than BeautifulSoup (their claim to fame). It has a compatibility API for BeautifulSoup too if you don't want to learn the lxml AP...
JavaScript: What are .extend and .prototype used for?
...ibraries to make it easy to create objects from other objects. See http://api.jquery.com/jQuery.extend/ or http://www.prototypejs.org/api/object/extend for some examples.
.prototype refers to the "template" (if you want to call it that) of an object, so by adding methods to an object's prototype (...
When would I use Task.Yield()?
...s free to return using a completely synchronous path.
If you're making an API where it's critical that you don't block and you run some code asynchronously, and there's a chance that the called method will run synchronously (effectively blocking), using await Task.Yield() will force your method to ...
Difference between class and type
...ld be considered valid.
The Java type system, as exposed by the reflection API, has two types: Class<T> class and Type interface, which the former implements. In this system, a class (an element that is described by an instance of Class<T>) is any type created with the keyword class or i...
Should I always return IEnumerable instead of IList?
...e track.
Returning a more derived type (IList) provides the users of your API with more operations on the result.
I would always suggest returning the least derived type that has all the operations your users are going to need... so basically, you first have to deremine what operations on the resu...
android View not attached to window manager
...miss it
if (context instanceof Activity) {
// Api >=17
if (!((Activity) context).isFinishing() {
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN_MR1) {
if (!((Activity) context).isDestroyed()) ...