大约有 9,600 项符合查询结果（耗时：0.0176秒） [XML]
@UniqueConstraint and @Column(unique = true) in hibernate annotation
...nNames = "group")
}
)
This has the same effect as the first code block.
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PostgreSQL Crosstab Query
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Consider adding explaination vs just a block of code
– Daniel L. VanDenBosch
Jun 29 '17 at 15:12
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Where is the syntax for TypeScript comments documented?
...annotation extensions in JSDoc.
You can (and should) still use other jsdoc block tags like @returns etc.
Example
Just an example. Focus on the types (not the content).
JSDoc version (notice types in docs):
/**
* Returns the sum of a and b
* @param {number} a
* @param {number} b
* @returns {numbe...
java.util.Date vs java.sql.Date
... as seen in UTC.
java.time.OffsetDateTime
Instant is the basic building-block class of java.time. For more flexibility, use OffsetDateTime set to ZoneOffset.UTC for the same purpose: representing a moment in UTC.
OffsetDateTime odt = OffsetDateTime.now( ZoneOffset.UTC ) ;
You can send this obj...
How should I log while using multiprocessing in Python?
...rocessing.queues.SimpleQueue instead, which does not involve thread but is blocking.
– Danqi Wang
Oct 11 '13 at 10:08
5
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How to set username and password for SmtpClient object in .NET?
...ifferent from the web.config? We have the issue where our internal smtp is blocked by some high security clients and we want to use their smtp server, is there a way to do this from the code instead of web.config?
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How do I get a consistent byte representation of strings in C# without manually specifying an encodi
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byte[] bytes = new byte[str.Length * sizeof(char)];
System.Buffer.BlockCopy(str.ToCharArray(), 0, bytes, 0, bytes.Length);
return bytes;
}
// Do NOT use on arbitrary bytes; only use on GetBytes's output on the SAME system
static string GetString(byte[] bytes)
{
char[] chars = new c...
When is a function too long? [closed]
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Another important metric is the number of levels of block nesting. Keep to a minimum. Breaking a function into smaller parts often helps. Other things can help too, such as multiple returns.
– user2367418
Jan 21 '19 at 5:41
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Re-entrant locks in C#
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If a thread is already holding a lock, then it will not block itself. The .Net framework ensures this. You only have to make sure that two threads do not attempt to aquire the same two locks out of sequence by whatever code paths.
The same thread can aquire the same lock multiple...
Hide all warnings in ipython
...s)
if (code_show_err){
stderr.forEach(ele => ele.style.display = 'block');
} else {
stderr.forEach(ele => ele.style.display = 'none');
}
code_show_err = !code_show_err
}
document.addEventListener('DOMContentLoaded', code_toggle_err);
</script>
To toggle on/off output_stder...