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Using the HTML5 “required” attribute for a group of checkboxes?
...'s a bit I pulled together for JQuery users, including a custom validation error message:
$cbx_group = $("input:checkbox[name^='group']");
$cbx_group.on("click", function() {
if ($cbx_group.is(":checked")) {
// checkboxes become unrequired as long as one is checked
$cbx_group.pr...
How to reverse a singly linked list using only two pointers?
...
I'm not sure about 'obvious errors' in the original. Design-wise, not passing the head of the list in and not returning the new head is a bad idea. The only bug, though, is the last line in the reverse() function should be setting first, I believe. O...
What is NSLayoutConstraint “UIView-Encapsulated-Layout-Height” and how should I go about forcing it
...ecalculate this constraint and everything does lay out correctly after the error prints.
– Rog
Mar 18 '15 at 12:15
...
github: No supported authentication methods available
...
If you're using Pageant and are getting the error described in the question after rebooting your PC (or otherwise closing and reopening Pageant):
The error can be caused by Pageant not having your GitHub SSH key actively loaded. By default, Pageant does NOT automatic...
back button callback in navigationController in iOS
...o UINavigationBarDelegate, trying to call it will result in a compile time error. The solution I went with is to use Objective-C runtime to get the implementation directly and call it. Please let me know if anyone has a better solution.
The other problem is that navigationBar(_:shouldPop:) is calle...
Ship an application with a database
...ataBase();
} catch (IOException e) {
throw new Error("Error copying database");
}
} else if (upgradeDatabase) {
/*
* If the database is upgraded by the copy and reload method, then
* the upgrade code needs to go he...
jQuery - Create hidden form element on the fly
... I just tried this method with jQuery 1.6.2 and recieved this error with Firefox 7.0.1: "uncaught exception: type property can't be changed" It seems that you cant use the attr method to change the type property under these conditions. I'm now trying the method below...
...
How to compare objects by multiple fields
...name);
}
});
This requires a lot of typing, maintenance and is error prone.
The reflective way: Sorting with BeanComparator
ComparatorChain chain = new ComparatorChain(Arrays.asList(
new BeanComparator("size"),
new BeanComparator("nrOfToppings"),
new BeanComparator("name")))...
#define macro for debug printing in C?
...r macro
else
do_something_useful(x, y);
And the else is now a syntax error. The do { ... } while(0) loop avoids both these problems.
There's one other way of writing the macro which might work:
/* BAD - BAD - BAD */
#define debug_print(...) \
((void)((DEBUG) ? fprintf(stderr, __...
git status shows modifications, git checkout — doesn't remove them
...standing/guess is that two different comparison methods are involved. The error happens when you have a differing line ending somewhere, and git sometimes ignores it. When you ask git status, it finds that they are different files. When you ask git checkout, it finds that they have the same conte...