大约有 30,000 项符合查询结果（耗时：0.0584秒） [XML]
What is the list of valid @SuppressWarnings warning names in Java?
...Java 6 JDK [1.6.0_41]) will generate "o possibly null" at the o.toString() call even though o can't be null at that point.
– par
Mar 13 '13 at 1:52
...
How can I check whether a numpy array is empty or not?
... object is the homogeneous multidimensional array. In Numpy dimensions are called axes. The number of axes is rank. Numpy's array class is called ndarray. It is also known by the alias array. The more important attributes of an ndarray object are:
ndarray.ndim
the number of axes (dimensions...
Delete with Join in MySQL
...ts table:
DELETE posts
FROM posts
INNER JOIN projects ON projects.project_id = posts.project_id
WHERE projects.client_id = :client_id
EDIT: For more information you can see this alternative answer
share
|
...
Wildcards in jQuery selectors
I'm trying to use a wildcard to get the id of all the elements whose id begin with "jander". I tried $('#jander*') , $('#jander%') but it doesn't work..
...
What is the meaning of id?
...
id is a pointer to any type, but unlike void * it always points to an Objective-C object. For example, you can add anything of type id to an NSArray, but those objects must respond to retain and release.
The compiler is tota...
Why does String.valueOf(null) throw a NullPointerException?
... Another suggestion: When you overload a method and one argument could be called on two overloads (such as null in this case), make sure that both overloads act the same with regard to that value!
– Joachim Sauer
Jun 28 '10 at 11:49
...
What does the JSLint error 'body of a for in should be wrapped in an if statement' mean?
...ehind this is the following: each object in JavaScript has a special field called prototype. Everything you add to that field is going to be accessible on every object of that type. Suppose you want all arrays to have a cool new function called filter_0 that will filter zeroes out.
Array.prototype....
jquery IDs with spaces
Does anyone know how to select an item in the DOM by ID with jQuery, when that ID has a space?
11 Answers
...
vim command to restructure/force text to 80 columns
I know there are ways to automatically set the width of text in vim using set textwidth (like Vim 80 column layout concerns ). What I am looking for is something similar to = (the indent line command) but to wrap to 80. The use case is sometimes you edit text with textwidth and after joining li...
Git - How to use .netrc file on Windows to save user and password
... to 'C:\Users\"username"'.
Go that that folder (cd %HOME%) and make a file called '_netrc'
Note: Again, for Windows, you need a '_netrc' file, not a '.netrc' file.
Its content is quite standard (Replace the <examples> with your values):
machine <hostname1>
login <login1>
passwor...