大约有 41,000 项符合查询结果（耗时：0.0492秒） [XML]
Get a list of checked checkboxes in a div using jQuery
I want to get a list of names of checkboxes that are selected in a div with certain id. How would I do that using jQuery?
8...
Rails 3: “field-with-errors” wrapper changes the page appearance. How to avoid this?
Email field:
15 Answers
15
...
How to fix the “java.security.cert.CertificateException: No subject alternative names present” error
I have a Java web service client, which consumes a web service via HTTPS.
19 Answers
1...
How is Docker different from a virtual machine?
I keep rereading the Docker documentation to try to understand the difference between Docker and a full VM. How does it manage to provide a full filesystem, isolated networking environment, etc. without being as heavy?
...
JavaScript null check
I've come across the following code:
8 Answers
8
...
Open directory dialog
I want the user to select a directory where a file that I will then generate will be saved. I know that in WPF I should use the OpenFileDialog from Win32, but unfortunately the dialog requires file(s) to be selected - it stays open if I simply click OK without choosing one. I could "hack up" the f...
How do I make a transparent canvas in html5?
How can I make a canvas transparent? I need to because I want to put two canvases on top of one another.
6 Answers
...
SecurityException: Permission denied (missing INTERNET permission?)
this error is really really really strange and I don't know how to reproduce it and how to fix it because I made a lot of searches but nothing was useful.
...
How do I prevent a parent's onclick event from firing when a child anchor is clicked?
I'm currently using jQuery to make a div clickable and in this div I also have anchors. The problem I'm running into is that when I click on an anchor both click events are firing (for the div and the anchor). How do I prevent the div's onclick event from firing when an anchor is clicked?
...
How to estimate how much memory a Pandas' DataFrame will need?
I have been wondering... If I am reading, say, a 400MB csv file into a pandas dataframe (using read_csv or read_table), is there any way to guesstimate how much memory this will need? Just trying to get a better feel of data frames and memory...
...