大约有 44,000 项符合查询结果（耗时：0.0615秒） [XML]
Android Spinner: Get the selected item change event
...d on startup as well. Is there a way of executing the containing code only if there is a real item selection invoked by the user?
– Kennethvr
Dec 28 '10 at 11:53
39
...
Resizing an iframe based on content
...ication. Content from other applications (on other domains) is shown using iframes.
20 Answers
...
How to properly add cross-site request forgery (CSRF) token using PHP
...stically
Try this out:
Generating a CSRF Token
PHP 7
session_start();
if (empty($_SESSION['token'])) {
$_SESSION['token'] = bin2hex(random_bytes(32));
}
$token = $_SESSION['token'];
Sidenote: One of my employer's open source projects is an initiative to backport random_bytes() and random_...
Excel to CSV with UTF8 encoding [closed]
...
A simple workaround is to use Google Spreadsheet. Paste (values only if you have complex formulas) or import the sheet then download CSV. I just tried a few characters and it works rather well.
NOTE: Google Sheets does have limitations when importing. See here.
NOTE: Be careful of sensitive ...
C++ SFINAE examples?
...emplate<typename C> static One test(int C::*);
// Will be chosen if T is anything except a class.
template<typename C> static Two test(...);
public:
enum { Yes = sizeof(IsClassT<T>::test<T>(0)) == 1 };
enum { No = !Yes };
};
When IsClassT<int>::Yes i...
Remove file extension from a file name string
If I have a string saying "abc.txt" , is there a quick way to get a substring that is just "abc" ?
12 Answers
...
Is BCrypt a good hashing algorithm to use in C#? Where can I find it? [closed]
... a lookup table that contains all variations of characters hashed in a specific hashing algorithm.
Salt - a known random string appended to the original string before it is hashed.
For the .NET Framework, Bcrypt does not yet have a verified reference implementation. This is important because there...
Use of *args and **kwargs [duplicate]
So I have difficulty with the concept of *args and **kwargs .
11 Answers
11
...
How can I get the behavior of GNU's readlink -f on a Mac?
...It returns that file's canonicalized name—i.e., its absolute pathname.
If you want to, you can just build a shell script that uses vanilla readlink behavior to achieve the same thing. Here's an example. Obviously you could insert this in your own script where you'd like to call readlink -f
#...
Change a Django form field to a hidden field
...
If you have a custom template and view you may exclude the field and use {{ modelform.instance.field }} to get the value.
also you may prefer to use in the view:
form.fields['field_name'].widget = forms.HiddenInput()
but...