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What is the canonical way to trim a string in Ruby without creating a new string?
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edited Dec 24 '14 at 5:38
sameers
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How to get key names from JSON using jq
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195
You can use:
$ jq 'keys' file.json
$ cat file.json:
{ "Archiver-Version" : "Plexus Archiv...
Total number of items defined in an enum
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10 Answers
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How to add a “readonly” attribute to an ?
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jQuery <1.9
$('#inputId').attr('readonly', true);
jQuery 1.9+
$('#inputId').prop('readonly', true);
Read more about difference between prop and attr
sh...
iOS Safari – How to disable overscroll but allow scrollable divs to scroll normally?
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14 Answers
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BasicHttpBinding vs WsHttpBinding vs WebHttpBinding
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1 Answer
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Multiline bash commands in makefile
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138
You can use backslash for line continuation. However note that the shell receives the whole co...
Do fragments really need an empty constructor?
...is whole class example should show the usage.
/**
* Created by chris on 21/11/2013
*/
public class StationInfoAccessibilityFragment extends BaseFragment implements JourneyProviderListener {
public static final StationInfoAccessibilityFragment newInstance(String crsCode) {
StationInfo...
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 ...
How does the MapReduce sort algorithm work?
...uce sort, except for a custom partitioner that uses a sorted list of N − 1 sampled keys that define the key range for each reduce. In particular, all keys such that sample[i − 1] <= key < sample[i] are sent to reduce i. This guarantees that the output of reduce i are all less than the outp...