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Is null check needed before calling instanceof?
Will null instanceof SomeClass return false or throw a NullPointerException ?
7 Answers
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Where does 'Hello world' come from?
' hello, world ' is usually the first example for any programming language. I've always wondered where this sentence came from and where was it first used.
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When to use Windows Workflow Foundation? [closed]
Some things are easier to implement just by hand (code), but some are easier through WF. It looks like WF can be used to create (almost) any kind of algorithm. So (theoretically) I can do all my logic in WF, but it's probably a bad idea to do it for all projects.
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What are the differences between numpy arrays and matrices? Which one should I use?
What are the advantages and disadvantages of each?
5 Answers
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What's the difference between Ruby's dup and clone methods?
The Ruby docs for dup say:
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Checking if a string array contains a value, and if so, getting its position
I have this string array:
12 Answers
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Import existing source code to GitHub
How can I import source code from my computer to my GitHub account?
14 Answers
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Inserting string at position x of another string
I have two variables and need to insert string b into string a at the point represented by position . The result I'm looking for is "I want an apple". How can I do this with JavaScript?
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How can jQuery deferred be used?
jQuery 1.5 brings the new Deferred object and the attached methods .when , .Deferred and ._Deferred .
11 Answers
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How to define a two-dimensional array?
I want to define a two-dimensional array without an initialized length like this:
27 Answers
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