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How to get current moment in ISO 8601 format with date, hour, and minute?
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@Joachim The negative side of this "standard" approach is that I have to have many instances of "yyyy-MM-dd'T'HH:mmZ" in my application, every time I need an ISO-8601 formatted date. With JodaTime, as I see, I can use a pre-defined formatter ISODateTimeFormat, wh...
In Django - Model Inheritance - Does it allow you to override a parent model's attribute?
... is to create an abstract model representing a "Place", eg. AbstractPlace, and inherit from it:
class AbstractPlace(models.Model):
name = models.CharField(max_length=20)
rating = models.DecimalField()
class Meta:
abstract = True
class Place(AbstractPlace):
pass
class Long...
Disable scrolling on ``
...stening for the mousewheel event on all input-number elements all the time and only do it, when the element is in focus (that's when the problem exists). Otherwise the user cannot scroll the page when the mouse pointer is anywhere over a input-number element.
Solution for jQuery:
// disable mouse...
[since C++11] std::array的使用 - C/C++ - 清泛网 - 专注C/C++及内核技术
...算符和初始化列表：
array<int, 3> a = {1, 2, 3};
array<int, 100> b = {1, 2, 3}; // a[0] ~ a[2] = 1, 2, 3; a[3] ~ a[99] = 0, 0, 0 ... 0;
array<int, 3> c; // c[0] ~ c[2] 未初始化，是垃圾值.
assignment
形式
说明
c = other
把ot...
Android: Scale a Drawable or background image?
... like this:
<?xml version="1.0" encoding="utf-8"?>
<bitmap xmlns:android="http://schemas.android.com/apk/res/android"
android:gravity="center"
android:src="@drawable/list_bkgnd" />
Then it will be centered in the view if used as background. There are also other flags: http://d...
Is it wrong to use Deprecated methods or classes in Java?
...t in the API for backward compatibility for an unspecified period of time, and may in future releases be removed. That is, no, it's not wrong, but there is a better way of doing it, which is more robust against API changes.
2. What if I don't change any method and run my application with warning...
int a[] = {1,2,}; Weird comma allowed. Any particular reason?
...
It makes it easier to generate source code, and also to write code which can be easily extended at a later date. Consider what's required to add an extra entry to:
int a[] = {
1,
2,
3
};
... you have to add the comma to the existing line and add a new line....
Can I use a collection initializer for Dictionary entries?
...KeyValuePair<TKey, TValue>>?
– Shimmy Weitzhandler
Dec 17 '12 at 21:48
after C# 3.0 you can use var instead o...
sort object properties and JSON.stringify
My application has a large array of objects, which I stringify and save them to the disk. Unfortunately, when the objects in the array are manipulated, and sometimes replaced, the properties on the objects are listed in different orders (their creation order?). When I do JSON.stringify() on the arr...
What is LINQ and what does it do? [closed]
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LINQ stands for Language Integrated Query.
Instead of writing YAQL (Yet Another Query Language), Microsoft language developers provided a way to express queries directly in their languages (such as C# and Visual Basic). The techniq...