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Best way to test for a variable's existence in PHP; isset() is clearly broken
...er to a question. FALSE is the answer to yes or no,'' is the answer to the title someone submitted, and 0 is the answer to quantity or time etc. They ARE set as some type of answer/result which makes them valid as being set.
NULL is just no answer what so ever, it doesn't tell us yes or no and it d...
“Keep Me Logged In” - the best approach
...
Introduction
Your title “Keep Me Logged In” - the best approach make it difficult for me to know where to start because if you are looking at best approach then you would have to consideration the following :
Identification
Security
C...
Does the C++ standard mandate poor performance for iostreams, or am I just dealing with a poor imple
...
Not answering the specifics of your question so much as the title: the 2006 Technical Report on C++ Performance has an interesting section on IOStreams (p.68). Most relevant to your question is in Section 6.1.2 ("Execution Speed"):
Since certain aspects of IOStreams processing are...
When to Redis? When to MongoDB? [closed]
...s during the next 14 days as you keep on remembering crap like salutation, title, plus adding a foreign key with addresses. Then you figure that lastname should be lastName. Almost one change a day. Then you say darnit. I have to get on and write a web site/system, never mind this data model bs. So ...
Why does GCC generate 15-20% faster code if I optimize for size instead of speed?
...nificantly. They attribute this to alignment of "hot loops".
This paper, titled "Producing wrong data without doing anything obviously wrong!" says that inadvertent experimental bias due to nearly uncontrollable differences in program running environments probably renders many benchmark results me...
Separation of business logic and data access in django
...JSF), e.g:
models.py
class Book:
author = models.ForeignKey(User)
title = models.CharField(max_length=125)
class Meta:
app_label = "library"
services.py
from library.models import Book
def get_books(limit=None, **filters):
""" simple service function for retrieving books ...
What does Expression.Quote() do that Expression.Constant() can’t already do?
...t called Dynamic Language Runtime. Its documentation includes the document titled, "Expression Trees v2 Spec", which is exactly that: The specification for LINQ expression trees in .NET 4.
Update: CodePlex is defunct. The Expression Trees v2 Spec (PDF) has moved to GitHub.
For example, it says...
What techniques can be used to speed up C++ compilation times?
...
There's an entire book on this topic, which is titled Large-Scale C++ Software Design (written by John Lakos).
The book pre-dates templates, so to the contents of that book add "using templates, too, can make the compiler slower".
...
How to make a SPA SEO crawlable?
...ivate: function () {
router.map([
{ route: '', title: 'Store', moduleId: 'viewmodels/store', nav: true },
{ route: 'about', moduleId: 'viewmodels/about', nav: true }
])
.buildNavigationModel()
.mapUnknownRoutes(f...
Inline labels in Matplotlib
... plt.figure()
plt.imshow(p, interpolation='nearest')
plt.title(axis.lines[l].get_label())
pos = np.argmax(p) # note, argmax flattens the array first
best_x, best_y = (pos / N, pos % N)
x = xmin + (xmax-xmin) * best_x / N
y = ymin + (ymax-...