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How to deal with floating point number precision in JavaScript?
... If you just don’t want to see all those extra decimal places: simply
format your result rounded to a fixed
number of decimal places when
displaying it.
If you have no decimal datatype available, an alternative is to work
with integers, e.g. do money
calculations entirely in cents. Bu...
AfxGetMainWnd函数解惑 - C/C++ - 清泛网 - 专注C/C++及内核技术
...时也会失灵。不信， 你测试一下下面的代码：
unsigned __stdcall SecondThreadFunc( void* pArguments )
{
CMainFrame* pMainWnd = (CMainFrame*)AfxGetMainWnd();
if (NULL!=pMainWnd)
{
CView *pView = pMainWnd->GetActiveView();
if (NULL...
Virtual Memory Usage from Java under Linux, too much memory used
... but it's largely meaningless, and usually based on looking at the wrong information. The usual phrasing is something like "Hello World on Java takes 10 megabytes! Why does it need that?" Well, here's a way to make Hello World on a 64-bit JVM claim to take over 4 gigabytes ... at least by one form o...
How to check for null in Twig?
...t, which does a type strict comparison of two values, might be of interest for checking values other than null (like false):
{% if var is sameas(false) %}
{# do something %}
{% endif %}
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Loop through properties in JavaScript object with Lodash
Is it possible to loop through the properties in a JavaScript object? For instance, I have a JavaScript object defined as this:
...
How can you determine a point is between two other points on a line segment?
... points (called a and b) on it represented by an x integer and a y integer for each point.
20 Answers
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A semantics for Bash scripts?
... to work. However, I don't really know what's going on, and I was hoping for a more formal introduction to Bash as a programming language. For example: What is the evaluation order? what are the scoping rules? What is the typing discipline, e.g. is everything a string? What is the state of the pro...
Any gotchas using unicode_literals in Python 2.6?
...lready gotten our code base running under Python 2.6. In order to prepare for Python 3.0, we've started adding:
6 Answers
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Django DB Settings 'Improperly Configured' Error
Django (1.5) is workin' fine for me, but when I fire up the Python interpreter (Python 3) to check some things, I get the weirdest error when I try importing - from django.contrib.auth.models import User -
...
Is there a read-only generic dictionary available in .NET?
...
+1 for posting complete code and not just a link, but I'm curious, what's the point of an empty constructor in a ReadOnlyDictionary? :-)
– Samuel Neff
Feb 22 '11 at 16:36
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