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Are there disadvantages to using a generic varchar(255) for all text-based fields?
...hat in practice stored very short strings.
It's best to define the column based on the type of data that you intend to store. It has benefits to enforce application-related constraints, as other folks have mentioned. But it has the physical benefits to avoid the memory waste I described above.
I...
Practical non-image based CAPTCHA approaches?
It looks like we'll be adding CAPTCHA support to Stack Overflow. This is necessary to prevent bots, spammers, and other malicious scripted activity. We only want human beings to post or edit things here!
...
How do I uniquely identify computers visiting my web site?
...are that will do this automatically. If you really need to track something based on a computer you will have to write a native application (Apple Store / Android Store / Windows Program / etc).
I might not be able to give you an answer to the question you asked but I can show you how to implement s...
What breaking changes are introduced in C++11?
...ntifier in the last part of the qualifier in the qualified name denoting a base class, that using declaration now names the constructor, instead of members with that name.
Example:
struct A { protected: int B; };
typedef A B;
struct C : B {
// inheriting constructor, instead of bringing A::B i...
How is std::function implemented?
...function<int (double)> for the sake of simplicity):
struct callable_base {
virtual int operator()(double d) = 0;
virtual ~callable_base() {}
};
template <typename F>
struct callable : callable_base {
F functor;
callable(F functor) : functor(functor) {}
virtual int operato...
Min/Max of dates in an array?
...ngth; ++i) { func(array[i]); } } function reduce(combine, base, array) { foreach(function(element) { base = combine(base, element); }, array); return base; }
– blaze
Jan 29 '13 at 0:36
...
Configuring diff tool with .gitconfig
...cmd = "diffmerge --merge --result=\"$MERGED\" \"$LOCAL\" \"$(if test -f \"$BASE\"; then echo \"$BASE\"; else echo \"$LOCAL\"; fi)\" \"$REMOTE\""
trustExitCode = false
[diff]
tool = diffmerge
[difftool "diffmerge"]
cmd = diffmerge \"$LOCAL\" \"$REMOTE\"
So, you see, you're d...
Favicon not showing up in Google Chrome [duplicate]
...est you to still have the normal favicon. This has solved my issue on IE.
Base64 approach
Found another solution for this which works great! I simply added my favicon as Base64 Encoded Image directly inside the tag like this:
<link href="data:image/x-icon;base64,AAABAAIAEBAAAAEAIABoBAAAJgAAAC...
HTTP error 403 in Python 3 Web Scraping
...
Definitely it's blocking because of your use of urllib based on the user agent. This same thing is happening to me with OfferUp. You can create a new class called AppURLopener which overrides the user-agent with Mozilla.
import urllib.request
class AppURLopener(urllib.request....
How to make an enum conform to a protocol in Swift?
... mutating func adjust()
}
enum ExampleEnum : ExampleProtocol {
case Base, Adjusted
var simpleDescription: String {
return self.getDescription()
}
func getDescription() -> String {
switch self {
case .Base:
return "A simple description of en...