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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...
moving committed (but not pushed) changes to a new branch after pull
...ushed your changes yet, I'd suggest doing a rebase so that the history is tidier. (Also, when you eventually merge your topic branch back to master, the changes will be more obvious.)
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Deciding between HttpClient and WebClient
Our web app is running in .Net Framework 4.0. The UI calls controller methods through ajax calls.
7 Answers
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What's the difference between $evalAsync and $timeout in AngularJS?
... I'm not sure I understand though. Why does it make a difference if you're calling $evalAsync from a controller or a directive? The asyncQueue doesn't know whether it was registered from a controller or a directive, it just queues it up on the current scope. Does it have to do with when stuff runs i...
How do I use pagination with Django class based generic ListViews?
...rmal content list, maybe a table** .... #}
{% if car_list %}
<table id="cars">
{% for car in car_list %}
<tr>
<td>{{ car.model }}</td>
<td>{{ car.year }}</td>
<td><a href="/car/{{ car...
Understanding recursion [closed]
... A binary tree is a tree made of nodes that have exactly two children, typically called "left" and "right"; again the children can be nodes, or null. A root is a node that is not the child of any other node.
Imagine that a node, in addition to its children, has a value, a number, and imagine that w...
Can someone explain __all__ in Python?
...s.
What does this do?
What does __all__ do?
It declares the semantically "public" names from a module. If there is a name in __all__, users are expected to use it, and they can have the expectation that it will not change.
It also will have programmatic affects:
import *
__all__ in a mod...
Invoking a jQuery function after .each() has completed
In jQuery, is it possible to invoke a callback or trigger an event after an invocation of .each() (or any other type of iterative callback) has completed .
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Is there a difference between foreach and map?
... important point to mention (this is particularly true in Scala) is that a call to map does not result in the execution of its underlying logic until when the expected transformed list is summoned. In contrast, foreach's operation is computed immediately.
– solimant
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The requested resource does not support HTTP method 'GET'
...the correct answer is certainly necessary here!
– Jaxidian
Jul 15 '13 at 3:44
6
Edited answer wit...