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How to check if a variable exists in a FreeMarker template?
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309
To check if the value exists:
[#if userName??]
Hi ${userName}, How are you?
[/#if]
Or wit...
How can I move a single directory from a git repository to a new repository whilst maintaining the h
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answered May 1 '09 at 13:39
Brian CampbellBrian Campbell
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Why is an int in OCaml only 31 bits?
...pointer dererefences plus one object construction. And you take up almost 20 Byte.
However, the trick is that with so-called immutable value types like integers, you usually don't need all the metadata in the object header: you can just leave all that stuff out, and simply synthesize it (which is V...
Should I use the Reply-To header when sending emails as a service to others?
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answered Jan 18 '11 at 20:01
dkarpdkarp
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Create Directory if it doesn't exist with Ruby
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answered Oct 9 '13 at 19:08
zrl3dxzrl3dx
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Convert hex string to int in Python
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1130
Without the 0x prefix, you need to specify the base explicitly, otherwise there's no way to tell...
Inherit from a generic base class, apply a constraint, and implement an interface in C#
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answered Jan 5 '10 at 16:30
Adam RobinsonAdam Robinson
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“icon-bar” in twitter bootstrap navigation bar
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130
icon-bar is used for responsive layouts to create a button that looks like ≡ on narrow browser...
Replacing Pandas or Numpy Nan with a None to use with MysqlDB
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203
@bogatron has it right, you can use where, it's worth noting that you can do this natively in p...
Is it safe to ignore the possibility of SHA collisions in practice?
...han 2n/2). For instance, with SHA-256 (n=256) and one billion messages (p=109) then the probability is about 4.3*10-60.
A mass-murderer space rock happens about once every 30 million years on average. This leads to a probability of such an event occurring in the next second to about 10-15. That's 4...