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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
...Ref.transaction(function (current_value) {
return (current_value || 0) + 1;
});
For more info, see https://www.firebase.com/docs/transactions.html
UPDATE:
Firebase recently released Cloud Functions. With Cloud Functions, you don't need to create your own Server. You can simply write JavaScript ...
Config Error: This configuration section cannot be used at this path
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What is the C# equivalent to Java's isInstance()?
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The equivalent of Java’s obj.getClass().isInstance(otherObj) in C# is as follows:
bool result...
Python argparse ignore unrecognised arguments
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answered Oct 10 '12 at 11:28
unutbuunutbu
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How to add item to the beginning of List?
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Matt HamiltonMatt Hamilton
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click or change event on radio using jquery
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This code worked for me:
$(function(){
$('input:radio').change(function(){
alert...
pythonic way to do something N times without an index variable?
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A slightly faster approach than looping on xrange(N) is:
import itertools
for _ in itertools...
Is it possible to do start iterating from an element other than the first using foreach?
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Yes. Do the following:
Collection<string> myCollection = new Collection<string>;
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How to close tag properly?
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<img src='stackoverflow.png' />
Works fine and closes the tag properly. Best to add the ...
Easiest way to open a download window without navigating away from the page
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