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What do all of Scala's symbolic operators mean?
Scala syntax has a lot of symbols. Since these kinds of names are difficult to find using search engines, a comprehensive list of them would be helpful.
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Python add item to the tuple
I have some object.ID-s which I try to store in the user session as tuple. When I add first one it works but tuple looks like (u'2',) but when I try to add new one using mytuple = mytuple + new.id got error can only concatenate tuple (not "unicode") to tuple .
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How to change position of Toast in Android?
When I use Toast to display some popup text on the screen, it displays the text a little bit above the bottom of the screen, which is the default position.
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Is Fortran easier to optimize than C for heavy calculations?
From time to time I read that Fortran is or can be faster then C for heavy calculations. Is that really true? I must admit that I hardly know Fortran, but the Fortran code I have seen so far did not show that the language has features that C doesn't have.
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What vim plugins are available for Eclipse? [closed]
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Eclim
Eclim is not the correct approach in my opinion. You want to retain the flexibility and functionality of the IDE while gaining the editing power of Vim.
viPlugin
I used viPlugin when I was working with Eclipse. However it is not free (unlike the IntelliJ Idea V...
How to run a PowerShell script from a batch file
I am trying to run this script in PowerShell. I have saved the below script as ps.ps1 on my desktop.
8 Answers
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Does use of final keyword in Java improve the performance?
In Java we see lots of places where the final keyword can be used but its use is uncommon.
13 Answers
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How do I parse JSON with Ruby on Rails? [duplicate]
I'm looking for a simple way to parse JSON, extract a value and write it into a database in Rails.
12 Answers
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How to clear a chart from a canvas so that hover events cannot be triggered?
I'm using Chartjs to display a Line Chart and this works fine:
20 Answers
20
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MySQL - Get row number on select
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Take a look at this.
Change your query to:
SET @rank=0;
SELECT @rank:=@rank+1 AS rank, itemID, COUNT(*) as ordercount
FROM orders
GROUP BY itemID
ORDER BY ordercount DESC;
SELECT @rank;
The last select is your count.
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