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Activity transition in Android
How can I define the transition between two activities for Android 1.5 and later?
I would like an activity to fade in.
14 ...
How do I query using fields inside the new PostgreSQL JSON datatype?
I am looking for some docs and/or examples for the new JSON functions in PostgreSQL 9.2.
3 Answers
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How to sort an array of associative arrays by value of a given key in PHP?
...for is array_multisort().
Here's an example taken straight from the manual and adapted to your case:
$price = array();
foreach ($inventory as $key => $row)
{
$price[$key] = $row['price'];
}
array_multisort($price, SORT_DESC, $inventory);
As of PHP 5.5.0 you can use array_column() instead of ...
RSpec: describe, context, feature, scenario?
... context , feature , scenario : What is the difference(s) among the four and when do I use each one?
3 Answers
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Formatting Decimal places in R
...number of decimal places are displayed. This is often done for consistency and standardisation purposes rather than being concerned with significant figures.
Solution:
The following code shows exactly two decimal places for the number x.
format(round(x, 2), nsmall = 2)
For example:
format(roun...
How do you reference a capture group with regex find and replace in Visual Studio 2012, 2013, 2015,
...
To find and replace in VS 2012 and VS 2015 you do the following:
Surround with (), display capture with $1, $2, $n
Example (thanks to syonip)
In the find options, make sure 'use regular expressions' is checked, and put the follo...
Simple regular expression for a decimal with a precision of 2
...t:
\d+(\.\d{1,2})?
Both assume that both have at least one digit before and one after the decimal place.
To require that the whole string is a number of this form, wrap the expression in start and end tags such as (in Perl's form):
^\d+(\.\d{1,2})?$
To match numbers without a leading digit be...
List all indexes on ElasticSearch server?
...curl http://localhost:9200/_aliases
this will give you a list of indices and their aliases.
If you want it pretty-printed, add pretty=true:
curl http://localhost:9200/_aliases?pretty=true
The result will look something like this, if your indices are called old_deuteronomy and mungojerrie:
{
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Rebasing remote branches in Git
... repository to mirror a remote SVN repository, from which people can clone and work on. The intermediate repository has it's master branch rebased nightly from the upstream SVN, and we are working on feature branches. For example:
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A proper wrapper for console.log with correct line number?
I'm now developing an application, and place a global isDebug switch. I would like to wrap console.log for more convenient usage.
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