大约有 42,000 项符合查询结果（耗时：0.0597秒） [XML]
How to paginate with Mongoose in Node.js?
...sults I get from a .find() call? I would like a functionality comparable to "LIMIT 50,100" in SQL.
31 Answers
...
How to search by key=>value in a multidimensional array in PHP
Is there any fast way to get all subarrays where a key value pair was found in a multidimensional array? I can't say how deep the array will be.
...
What is the use of “assert” in Python?
...ration.
When you do...
assert condition
... you're telling the program to test that condition, and immediately trigger an error if the condition is false.
In Python, it's roughly equivalent to this:
if not condition:
raise AssertionError()
Try it in the Python shell:
>>> assert...
How to concatenate multiple lines of output to one line?
...p pattern , I get many lines of output. How do you concatenate all lines into one line, effectively replacing each "\n" with "\" " (end with " followed by space)?
...
How to validate an email address in JavaScript
Is there a regular expression to validate an email address in JavaScript?
95 Answers
9...
List directory tree structure in python?
I know that we can use os.walk() to list all sub-directories or all files in a directory. However, I would like to list the full directory tree content:
...
How to create a generic array in Java?
Due to the implementation of Java generics, you can't have code like this:
31 Answers
...
How can I use a batch file to write to a text file?
I need to make a script that can write one line of text to a text file in the same directory as the batch file.
7 Answers
...
Scroll back to the top of scrollable div
How to reset the scroll position back to top of container div the next time?
15 Answers
...
What is the difference between ports 465 and 587?
...
SMTP protocol: smtps (port 465) v. msa (port 587)
Ports 465 and 587 are intended for email client to email server communication - sending out email using SMTP protocol.
Port 465 is for smtps
SSL encryption is started automatically ...