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In Firebase, is there a way to get the number of children of a node without loading all the node dat
...ou gave does indeed load the entire set of data and then counts it client-side, which can be very slow for large amounts of data.
Firebase doesn't currently have a way to count children without loading data, but we do plan to add it.
For now, one solution would be to maintain a counter of the numb...
How to RedirectToAction in ASP.NET MVC without losing request data
...n. If you don't like that behavior, you can implement the new ITempDataProvider interface and use some other mechanism for storing temp data. I wouldn't do that unless you know for a fact (via measurement and profiling) that the use of Session state is hurting you.
...
Twitter Bootstrap CSS affecting Google Maps
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With Bootstrap 2.0, this seemed to do the trick:
#mapCanvas img {
max-width: none;
}
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Django REST framework: non-model serializer
...nd need your advice. I am developing a web service. The service has to provide REST interface to other services. The REST interface, which I need to implement, is not working with my models directly (I mean the get, put, post, delete operations). Instead, it provides other services with some calcula...
How to get the HTML for a DOM element in javascript
...d create a wrapping element on the fly:
var target = document.getElementById('myElement');
var wrap = document.createElement('div');
wrap.appendChild(target.cloneNode(true));
alert(wrap.innerHTML);
I am cloning the element to avoid having to remove and reinsert the element in the actual document....
Attempt to set a non-property-list object as an NSUserDefaults
...I knew what was causing this error, but I can't seem to figure out what I did wrong.
11 Answers
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Height of status bar in Android [duplicate]
What's the height of the status bar in Android? Is it always the same?
23 Answers
23
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javascript node.js next()
...le you posted:
function loadUser(req, res, next) {
if (req.session.user_id) {
User.findById(req.session.user_id, function(user) {
if (user) {
req.currentUser = user;
return next();
} else {
res.redirect('/sessions/new');
}
});
} else {
res.r...
Recover from git reset --hard?
...ged changes (git add) should be recoverable from index objects, so if you did, use git fsck --lost-found to locate the objects related to it. (This writes the objects to the .git/lost-found/ directory; from there you can use git show <filename> to see the contents of each file.)
If not, the a...
What is the Git equivalent for revision number?
We use SVN at work, but for my personal projects I decided to use Git. So I installed Git yesterday, and I wonder what is the revision number equivalent in Git .
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