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How to check a string for specific characters?
...# original answer given, but less Pythonic than the above...
s.find('$')==-1 # not found
s.find('$')!=-1 # found
And so on for other characters.
... or
pattern = re.compile(r'\d\$,')
if pattern.findall(s):
print('Found')
else
print('Not found')
... or
chars = set('0123456789$,')
if an...
How to prevent browser page caching in Rails
...se.headers["Pragma"] = "no-cache"
response.headers["Expires"] = "Mon, 01 Jan 1990 00:00:00 GMT"
end
end
Rails 4 and older versions:
class ApplicationController < ActionController::Base
before_filter :set_cache_headers
private
def set_cache_headers
response.headers["Cache-Con...
How to modify memory contents using GDB?
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122
The easiest is setting a program variable (see GDB: assignment):
(gdb) l
6 {
7 ...
Difference between JAX-WS, Axis2 and CXF
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144
The JAX-WS implementation built into the JDK really is just the basic soap stuff. If you need...
How to recursively find the latest modified file in a directory?
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21 Answers
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Windows batch: formatted date into variable
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17 Answers
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Appending an element to the end of a list in Scala
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List(1,2,3) :+ 4
Results in List[Int] = List(1, 2, 3, 4)
Note that this operation has a complexity of O(n). If you need this operation frequently, or for long lists, consider using another data type (e.g. a ListBuffer).
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How to convert a negative number to positive?
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216
>>> n = -42
>>> -n # if you know n is negative
42
>>> abs(n) ...
Use dynamic variable names in JavaScript
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17 Answers
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.NET - How can you split a “caps” delimited string into an array?
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17 Answers
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