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How do I check if a C++ std::string starts with a certain string, and convert a substring to an int?
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21 Answers
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Plot two graphs in same plot in R
I would like to plot y1 and y2 in the same plot.
16 Answers
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What is the difference between a .xib file and a .storyboard?
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Apple introduced the concept of "storyboarding" in iOS5 SDK to simplify and better manage scre...
Entity Framework: There is already an open DataReader associated with this Command
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PostgreSQL DISTINCT ON with different ORDER BY
...approaches:
The general solution that should work in most DBMSs:
SELECT t1.* FROM purchases t1
JOIN (
SELECT address_id, max(purchased_at) max_purchased_at
FROM purchases
WHERE product_id = 1
GROUP BY address_id
) t2
ON t1.address_id = t2.address_id AND t1.purchased_at = t2.max_pur...
How to find a min/max with Ruby
I want to use min(5,10) , or Math.max(4,7) . Are there functions to this effect in Ruby?
6 Answers
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Get all column names of a DataTable into string array using (LINQ/Predicate)
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edited Sep 19 '15 at 8:48
answered Feb 17 '11 at 7:54
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Understanding keystore, certificates and alias
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1 Answer
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How do I break a string across more than one line of code in JavaScript?
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10 Answers
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Are different ports on the same server considered cross-domain? (Ajax-wise)
Can XMLHttpRequest send a request to http:// mydomain.com:81/ from http:// mydomain.com/ ?
1 Answer
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