大约有 47,000 项符合查询结果（耗时：0.0503秒） [XML]
What does this symbol mean in JavaScript?
This is a collection of questions that come up every now and then about syntax in JavaScript. This is also a Community Wiki, so everyone is invited to participate in maintaining this list.
...
What is the difference between JOIN and UNION?
What is the difference between JOIN and UNION ? Can I have an example?
15 Answers
1...
Tablet or Phone - Android
...user is using a tablet or a phone?
I've got problems with my tilt function and my new tablet (Transformer)
30 Answers
...
Check synchronously if file/directory exists in Node.js
...version of lstat, etc.
lstatSync tells you both whether something exists, and if so, whether it's a file or a directory (or in some file systems, a symbolic link, block device, character device, etc.), e.g. if you need to know if it exists and is a directory:
var fs = require('fs');
try {
// Q...
What is InputStream & Output Stream? Why and when do we use them?
Someone explain to me what InputStream and OutputStream are?
8 Answers
8
...
what is faster: in_array or isset? [closed]
...
in_array: 1.738441
This builds on Jason's benchmark by filling in some random values and occasionally finding a value that exists in the array. All random, so beware that times will fluctuate.
$a = array();
for ($i = 0; $i < 10000; ++$i) {
$v = rand(1, 1000000);
$a[$v] = $v;
}
echo "S...
How to handle many-to-many relationships in a RESTful API?
Imagine you have 2 entities, Player and Team , where players can be on multiple teams. In my data model, I have a table for each entity, and a join table to maintain the relationships. Hibernate is fine at handling this, but how might I expose this relationship in a RESTful API?
...
Python exit commands - why so many and when should each be used?
It seems that python supports many different commands to stop script execution. The choices I've found are: quit() , exit() , sys.exit() , os._exit()
...
Return a value if no rows are found in Microsoft tSQL
...1) > 0 THEN 1 ELSE 0 END AS [Value]
FROM Sites S
WHERE S.Id = @SiteId and S.Status = 1 AND
(S.WebUserId = @WebUserId OR S.AllowUploads = 1)
share
|
improve this answer
|
...
Case statement with multiple values in each 'when' block
... This link has a better summary of case statements in Ruby (and it includes examples of the regexp and splat syntax too).
– rsenna
Feb 20 '13 at 18:59
...