大约有 26,000 项符合查询结果（耗时：0.0504秒） [XML]
Calculate difference between two datetimes in MySQL
...L in, datetime -type filed. When users logs in, I want to get the difference between the last login time and the current time (which I get using NOW() ).
...
JavaScript: empty array, [ ] evaluates to true in conditional structures. Why is this?
I was encountering a lot of bugs in my code because I expected this expression:
2 Answers
...
sed error: “invalid reference \1 on `s' command's RHS”
I run several substitution commands as the core of a colorize script for maven .
One of the sed commands uses a regular expression which works find in the shell as discussed here . The current (not working) implementation can be found here .
...
Selecting multiple classes with jQuery
I’ve had a good look and can’t seem to find out how to select all elements matching certain classes in one jQuery selector statement such as this:
...
How do I access this object property with an illegal name?
I'm using a PHP class someone wrote to interface with the BaseCamp API.
2 Answers
2
...
How to toggle a boolean?
Is there a really easy way to toggle a boolean value in javascript ?
6 Answers
6
...
Efficiently checking if arbitrary object is NaN in Python / numpy / pandas?
...to designate missing values. As I iterate over the data set, I need to detect such missing values and handle them in special ways.
...
What is the difference between “Include Directories” and “Additional Include Directories”
In configuration properties of my project, under the "VC++ directories" there is an entry for "Include Directories". But under "C/C++" option, there is another entry called "Additional Include Directories". Same thing happens with library directories.
...
target input by type and name (selector)
I need to change some checkbox inputs to hidden inputs for some but not all inputs on a page.
3 Answers
...