大约有 31,500 项符合查询结果（耗时：0.0534秒） [XML]
Reusing output from last command in Bash
...ng backticks: `your_cmd` According to the Gnu Bash manual they are functionally identical. Of course this is also subject to the warning raised by @memecs
– user2065875
Apr 20 '15 at 21:33
...
How to dynamically compose an OR query filter in Django?
...o:
list = [1, 2, 3]
# it gets a bit more complicated if we want to dynamically build
# OR queries with dynamic/unknown db field keys, let's say with a list
# of db fields that can change like the following
# list_with_strings = ['dbfield1', 'dbfield2', 'dbfield3']
# init our q objects variable to ...
“Invalid JSON primitive” in Ajax processing
I am getting an error in an ajax call from jQuery.
12 Answers
12
...
val() doesn't trigger change() in jQuery [duplicate]
...the user types into the input and then the input loses focus.
You can manually call the onchange event using after setting the value:
$("#mytext").change(); // someObject.onchange(); in standard JS
Alternatively, you can trigger the event using:
$("#mytext").trigger("change");
...
How to set layout_weight attribute dynamically from code?
...t the value for the attribute layout_weight for button in android dynamically from java code ?
9 Answers
...
How to tell if node.js is installed or not
I've recently installed node.js and I have no idea how to run applications. I installed node.js but couldn't find further instructions. What does one really need to do? I wanted to see if it was actually working. So I executed a script called hello.js. It went as such:
...
How to concatenate two strings in C++?
...
First of all, don't use char* or char[N]. Use std::string, then everything else becomes so easy!
Examples,
std::string s = "Hello";
std::string greet = s + " World"; //concatenation easy!
Easy, isn't it?
Now if you need char con...
Giving a border to an HTML table row,
...or table. The net effect anyway is that you get separated border on almost all browsers unless you explicitly specifi collapse.)
Thus, you need to use collapsing borders. Example:
<style>
table { border-collapse: collapse; }
tr:nth-child(3) { border: solid thin; }
</style>
...
Accessing constructor of an anonymous class
...
How would I be able to call a method in the superclass of Test from within println, when that method is overridden?
– Mark Jeronimus
Feb 25 '14 at 14:56
...
How do I use ROW_NUMBER()?
...ases, despite their name, don't have a formal ordering, so if you want to call a row "1" or "10" or "1337", you need to order them first using an ORDER BY clause, which is the one that goes in the OVER (ORDER BY X) clause.
– Wtrmute
Sep 13 '17 at 0:25
...