大约有 47,000 项符合查询结果（耗时：0.0714秒） [XML]
How do I interpret precision and scale of a number in a database?
...number of decimal places
ie 123456.789 has a scale of 3
Thus the maximum allowed value for decimal(5,2) is 999.99
share
|
improve this answer
|
follow
|
...
Can't escape the backslash with regex?
...
If you're putting this in a string within a program, you may actually need to use four backslashes (because the string parser will remove two of them when "de-escaping" it for the string, and then the regex needs two for an escaped regex backslash).
For instance:
regex("\\\\")
is inter...
What is jQuery Unobtrusive Validation?
... in this Pluralsight video in the section on " AJAX and JavaScript".
Basically, it is simply Javascript validation that doesn't pollute your source code with its own validation code. This is done by making use of data- attributes in HTML.
...
Basic HTTP and Bearer Token Authentication
...sible. But as also stated ""The user agent MUST choose to use one of the challenges with the strongest auth-scheme it understands and request credentials from the user based upon that challenge." So like i have written 2 days ago i needed to pass the token to a non-standard header which is absolutel...
What's the difference between integer class and numeric class in R
...for double precision floating point numbers) and integer. R will automatically convert between the numeric classes when needed, so for the most part it does not matter to the casual user whether the number 3 is currently stored as an integer or as a double. Most math is done using double precision...
Why use strong named assemblies?
...nefits of strong naming your assembly first:
Strong naming your assembly allows you to include your assembly into the Global Assembly Cache (GAC). Thus it allows you to share it among multiple applications.
Strong naming guarantees a unique name for that assembly. Thus no one else can use the same...
How to open link in new tab on html?
...
The special targets all start with an underscore. blank would be the name of a frame or window. It may seem to work, because a new window or tab will probably be opened when none exists with the name 'blank', but a second click on the link shoul...
How to use XPath contains() here?
...that this:
//ul[@class='featureList' and contains(li, 'Type')]
would actually select a node!
share
|
improve this answer
|
follow
|
...
The differences between .build, .create, and .create! and when should they be used?
...< 3.x
The most important part, however, is that these methods can be called through an association (has_many, etc.) to automatically link the two models.
share
|
improve this answer
|
...
req.query and req.param in ExpressJS
...d: "5"}
req.param is a function that peels parameters out of the request. All of this can be found here.
UPDATE
If the verb is a POST and you are using bodyParser, then you should be able to get the form body in you function with req.body. That will be the parsed JS version of the POSTed form.
...