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Get file size, image width and height before upload
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So I started experimenting with the different things that FileReader API had to offer and could create an IMG tag with a DATA URL.
Drawback: It doesn't work on mobile phones, but it works fine on Google Chrome.
$('input').ch...
Programmatically creating Markdown tables in R with KnitR
I am just starting to learn about KnitR and the use of Markdown in generating R documents and reports. This looks to be perfect for a lot of the day to day reporting that I have to do with my job. However, one thing that I'm not seeing is an easy way to print data frames and tables using Markdown fo...
Microsoft Excel mangles Diacritics in .csv files?
...her encoding such as Windows-1252 and display the characters  at the start of the file.
There is a known bug where Excel, upon opening UTF8 CSV files via file association, assumes that they are in a single-byte encoding, disregarding the presence of the UTF8 BOM. This can not be fixed by any ...
How to get the top 10 values in postgresql?
...erformance is important (when is it not ;-) look for an index on score.
Starting with version 8.4, you can also use the standard (SQL:2008) fetch first
select *
from scores
order by score desc
fetch first 10 rows only
As @Raphvanns pointed out, this will give you the first 10 rows literally....
RSpec: how to test if a method was called?
... do with spy:
Message expectations put an example's expectation at the start, before you've invoked the
code-under-test. Many developers prefer using an arrange-act-assert (or given-when-then)
pattern for structuring tests. Spies are an alternate type of test double that support this
patte...
Search for selection in vim
...lo world" will also find "hello" at the end of a line, with "world" at the start of the next line).
http://vim.wikia.com/wiki/Search_for_visually_selected_text
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Benefit of using Parcelable instead of serializing object
... the Parcelable is not meant to be passed to an
activity. If you want to start
an activity and pass it some data, use a bundle. Parcelable is meant to
be used only as part of
an AIDL definition.
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Most efficient method to groupby on an array of objects
...ked my brains and still failed to understand how in the world does it work starting from ...result. Now I can't sleep because of that.
– user3307073
Mar 29 '19 at 9:26
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Choosing a stand-alone full-text search server: Sphinx or SOLR? [closed]
...uning (or you can use the included Jetty and just launch it with java -jar start.jar). Sphinx has no additional configuration.
Related questions:
Full Text Searching with Rails
Comparison of full text search engine - Lucene, Sphinx, Postgresql, MySQL?
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Equivalent to 'app.config' for a library (DLL)
...st & DLL projects and just re-adding it to my test project it suddenly starting working! My App.config setting now automatically get included in the DLL.configs. What a relief!
– Zeek2
Jun 19 '19 at 9:49
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