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What's the (hidden) cost of Scala's lazy val?
One handy feature of Scala is lazy val , where the evaluation of a val is delayed until it's necessary (at first access).
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background function in Python
...mes displays images to the user. The images can, at times, be quite large, and they are reused often. Displaying them is not critical, but displaying the message associated with them is. I've got a function that downloads the image needed and saves it locally. Right now it's run inline with the code...
How to query SOLR for empty fields?
I have a large solr index, and I have noticed some fields are not updated correctly (the index is dynamic).
7 Answers
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Convert hyphens to camel case (camelCase)
...pperCase(); });
The regular expression will match the -i in marker-image and capture only the i. This is then uppercased in the callback function and replaced.
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Printing tuple with string formatting in Python
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Note that the % syntax is obsolete. Use str.format, which is simpler and more readable:
t = 1,2,3
print 'This is a tuple {0}'.format(t)
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Ruby: Can I write multi-line string with no concatenation?
...n, in that case (although it might depend on both the starting indentation and your final needs).
EDIT: Adding one more:
p %{
SELECT * FROM users
ORDER BY users.id DESC
}.gsub(/\s+/, " ").strip
# >> "SELECT * FROM users ORDER BY users.id DESC"
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Use variable with TOP in select statement in SQL Server without making it dynamic [duplicate]
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it's completely weird...I wasn't aware of this and I got stuck for a few minutes on this. Thank you (+1)
– Christos
Feb 17 '16 at 10:37
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What does git push -u mean?
...entral one. That way, in the future, Git "knows" where you want to push to and where you want to pull from, so you can use git pull or git push without arguments. A little bit down, this article explains and demonstrates this concept.
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How to dynamic new Anonymous Class?
...lared. They have little to do with dynamic.
Now, if you were to use an ExpandoObject and reference it through a dynamic variable, you could add or remove fields on the fly.
edit
Sure you can: just cast it to IDictionary<string, object>. Then you can use the indexer.
You use the same castin...
How to 'git pull' into a branch that is not the current one?
... . I am in a different branch called newbranch , but I need to run a command that does a git pull from origin/master into master but I cannot run git checkout to change the selected branch until after the pull is complete. Is there a way to do this?
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