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How to select a CRAN mirror in R
...Just Works(tm), in all cases, including on headless systems (servers, IoT, etc.). Thanks, Dirk.
– Jesse Adelman
Oct 7 '18 at 22:45
4
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Can I have multiple :before pseudo-elements for the same element?
... position: absolute;
content: "";
/* more styles: width, height, etc */
}
.circle:after {
position: absolute;
content: "";
/* more styles: width, height, etc */
}
.circle span {
/* not relative/absolute/fixed */
}
.circle span:before {
position: absolute;
content...
Why does jQuery or a DOM method such as getElementById not find the element?
...'t (e.g. add the http: or https: scheme at the beginning, adjust the path, etc.)
Listening to the load/DOMContentLoaded events is exactly what jQuery is doing with .ready() [docs]. All your jQuery code that affects DOM element should be inside that event handler.
In fact, the jQuery tutorial expl...
Reserved keywords in JavaScript
What JavaScript keywords (function names, variables, etc) are reserved?
8 Answers
8
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Open and write data to text file using Bash?
... knowing exactly what to do with this file. How to save it, how to run it, etc.
– Danny
Sep 22 '16 at 5:52
16
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Java Timer vs ExecutorService?
...oss other systems in a cluster and do things like one-off batch execution, etc...
Just look at what each offers to decide.
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How to replace multiple strings in a file using PowerShell
...
Assuming you can only have one 'something1' or 'something2', etc. per line, you can use a lookup table:
$lookupTable = @{
'something1' = 'something1aa'
'something2' = 'something2bb'
'something3' = 'something3cc'
'something4' = 'something4dd'
'something5' = 'somethi...
What does “./” (dot slash) refer to in terms of an HTML file path location?
...der and ONLY the current folder. So if there is some kind of tool/compiler/etc that searches for the file, then './file' will search ONLY in current folder, whereas 'file' will search wherever the tool is configured to search (e.g. root, current folder, etc.)
– Marcel Toth
...
Difference between / and /* in servlet mapping url pattern
... overrides all other servlets, including all servlets provided by the servletcontainer such as the default servlet and the JSP servlet. Whatever request you fire, it will end up in that servlet. This is thus a bad URL pattern for servlets. Usually, you'd like to use /* on a Filter only. It is able t...
Circular list iterator in Python
...n l:
print i
all of which print:
>>>
a
b
c
d
a
b
c
d
...etc.
of the three I'd be prone to the append(pop()) approach as a function
servers = ['a','b','c','d']
def rotate_servers(servers):
servers.append(servers.pop(0))
return servers
while 1:
servers = rotate_serv...