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What are the differences between SML and OCaml? [closed]
...a top-level primitive in SML; it's not part of the Caml library. The Caml string library doesn't provide a fold function (at least not as of version 3.08). Implementations of many of the Caml List functions are unsafe for very long lists; they blow the stack.
The type systems are subtly different:...
Getting a map() to return a list in Python 3.x
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I guess because it's more verbose, you have to write an extra variable (twice)... If the operation is more complex and you end up writing a lambda, or you need also to drop some elements, I think a comprehension is definitively better than a map+filter, but if you already have the...
How to define @Value as optional
...r example was @Value("${myValue:DEFAULT}").
You are not limited to plain strings as default values. You can use SPEL expressions, and a simple SPEL expression to return null is:
@Value("${myValue:#{null}}")
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Django rest framework nested self-referential objects
... For anyone new viewing this question, I found that for each extra recursive level, I had to a repeat of the last line in the second edit. Strange workaround, but seems to work.
– Jeremy Blalock
Apr 11 '13 at 0:55
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Using StringWriter for XML Serialization
...lly added <?xml version="1.0" encoding="utf-8"?><test/> to the string, then declaring the SqlParameter to be of type SqlDbType.Xml or SqlDbType.NVarChar would give you the "unable to switch the encoding" error. Then, when inserting manually via T-SQL, since you switched the declared enco...
Can't find Request.GetOwinContext
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I have this problem and I download extra package from nuget to solve my problem,(run following command in Package Manager Console)
Install-Package Microsoft.Owin.Host.SystemWeb
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discuz插件开发新手入门 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...成1后 工具->清理缓存 然后刷新下页面就出现好多 类似string global_usernav_extra1的东西 这就是锚点，也是插件可以利用的点。
好了下面开始做插件：
后台 ->应用 ->设计新插件
提交后 请在插件管理中 启用即可
然后点击 设计...
How to compile and run C/C++ in a Unix console/Mac terminal?
...ake: command not found" <-- You have to have the developer tool and the extra components downloaded.
– dgig
Apr 30 '14 at 15:20
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Show the progress of a Python multiprocessing pool imap_unordered call?
... @WakanTanka: It goes in the main script after it spins off the extra threads. In my original example, it goes in the "while" loop, where rs has already launched the other threads.
– MidnightLightning
Aug 24 '15 at 11:58
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Difference between Hashing a Password and Encrypting it
...sible, you apply the secure hash algorithm and you cannot get the original string back. The most you can do is to generate what's called "a collision", that is, finding a different string that provides the same hash. Cryptographically secure hash algorithms are designed to prevent the occurrence of ...