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How to choose the right bean scope?
...s, then effectively three instances will be created. One with the username set, one with the password set and one on which the action is invoked. You normally want to use this scope only on beans which should live as long as the bean where it's being injected. So if a @NoneScoped or @Dependent is in...
Sending emails with Javascript
... This is a pretty roundabout way of doing this when you can just set href attribute to the same content instead of using javascript.
– Ryan Doherty
Nov 7 '08 at 3:43
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What is the difference between an ordered and a sorted collection?
...ion have order, but the order depends on the value of the element. A SortedSet is an example.
In contrast, a collection without any order can maintain the elements in any order. A Set is an example.
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Shuffling a list of objects
... range(555)
b = random.sample(a, len(a))
print "no duplicates:", a == list(set(b))
try:
random.sample(a, len(a) + 1)
except ValueError as e:
print "Nope!", e
# print: no duplicates: True
# print: Nope! sample larger than population
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How does this CSS produce a circle?
...s is produced?
To produce radius it takes two sides of its border. If you set border-radius to 50 pixels then it would take 25 pixels from one side and 25 pixels from another side.
And taking 25 pixels from each side it would produce like this:
div{
width: 0px;
height: 0px;
border: ...
Getting indices of True values in a boolean list
...tions telling me to use enumerate, but I guess I was using it wrong. I was setting the list equal to x, then doing enumerate(x) but I guess all I was doing was enumerating 4? Is that what was happening? Thanks for the help
– Charles Smith
Jan 30 '14 at 22:12
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Prevent user from seeing previously visited secured page after logout
...hecks on the server will be executed. You can do this using a Filter which sets the necessary response headers in the doFilter() method:
@WebFilter
public class NoCacheFilter implements Filter {
@Override
public void doFilter(ServletRequest req, ServletResponse res, FilterChain chain) thro...
How to change the text of a button in jQuery?
... Got it working using .html('Save'), I didn't notice that I had set runat=server on my button, this is what was causing the issue.
– user517406
Apr 7 '11 at 12:59
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Center a map in d3 given a geoJSON object
...The scaling seems to be ok. When applying it to my map there is a small offset. This small offset is probably caused because I use the translate command to center the map, while I should probably use the center command.
Create a projection and d3.geo.path
Calculate the bounds of the current proj...
Changing image sizes proportionally using CSS?
...
You need to fix one side ( eg height ) and set the other to auto.
Eg
height: 120px;
width: auto;
That would scale the image based on one side only. If you find cropping the image acceptable, you can just set
overflow: hidden;
to the parent element, which wo...