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Windows: How to specify multiline command on command prompt?
how do we extend a command to next line?
4 Answers
4
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Only read selected columns
Can anyone please tell me how to read only the first 6 months (7 columns) for each year of the data below, for example by using read.table() ?
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Default value of function parameter
... answered May 16 '10 at 7:38
Greg HewgillGreg Hewgill
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Best way to create an empty map in Java
I need to create an empty map.
7 Answers
7
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Python: Tuples/dictionaries as keys, select, sort
Suppose I have quantities of fruits of different colors, e.g., 24 blue bananas, 12 green apples, 0 blue strawberries and so on.
I'd like to organize them in a data structure in Python that allows for easy selection and sorting. My idea was to put them into a dictionary with tuples as keys, e.g.,
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How to convert vector to array
How do I convert a std::vector<double> to a double array[] ?
10 Answers
10
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How to undo 'git reset'?
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Short answer:
git reset 'HEAD@{1}'
Long answer:
Git keeps a log of all ref updates (e.g., checkout, reset, commit, merge). You can view it by typing:
git reflog
Somewhere in this list is the commit that you lost. Let's say you just t...
Detecting an undefined object property
What's the best way of checking if an object property in JavaScript is undefined?
46 Answers
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What Java ORM do you prefer, and why? [closed]
It's a pretty open ended question. I'll be starting out a new project and am looking at different ORMs to integrate with database access.
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How to count the number of set bits in a 32-bit integer?
8 bits representing the number 7 look like this:
55 Answers
55
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