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How to get item's position in a list?
...comprehension here, but it's disappeared.
Here:
[i for i,x in enumerate(testlist) if x == 1]
Example:
>>> testlist
[1, 2, 3, 5, 3, 1, 2, 1, 6]
>>> [i for i,x in enumerate(testlist) if x == 1]
[0, 5, 7]
Update:
Okay, you want a generator expression, we'll have a generator e...
PHP DOMDocument errors/warnings on html5-tags
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@Greg Good to know. It's just a test to demonstrate the xml parser will recognize the tag is not valid, but ignore it because of the flag.
– user2782001
Oct 3 '19 at 1:21
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How to debug heap corruption errors?
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BoundsChecker works fine as a smoke test, but don't even think about running a program under it while trying to run that program in production as well. The slowdown can be anywhere from 60x to 300x, depending on which options you are using, and whether or not ...
TypeScript: problems with type system
I'm just testing typescript in VisualStudio 2012 and have a problem with its type system. My html site has a canvas tag with the id "mycanvas". I'm trying to draw a rectangle on this canvas. Here's the code
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Set font-weight using Bootstrap classes
.... We use this with Title fields in order to emphasize them when necessary. Tested in Windows x64 in Chrome ver76 and IE11.
– timmi4sa
Sep 8 '19 at 19:36
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Volatile boolean vs AtomicBoolean
...ndSet(), and others that implement multiple operations (get/increment/set, test/set) without locking. That's why the Atomic* classes are so powerful.
For example, if multiple threads are using the following code using ++, there will be race conditions because ++ is actually: get, increment, and set...
rails 3.1.0 ActionView::Template::Error (application.css isn't precompiled)
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Thanks for this solution. I was trying to test some things in development mode and I was surprised that it was saying "application.css isn't precompiled" even though I had already precompiled assets and public/assets/application.css was present in the directory. Surp...
How to reset Jenkins security settings from the command line?
... you have done this, just restart Jenkins and log in using this password:
test
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Python set to list
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Your code does work (tested with cpython 2.4, 2.5, 2.6, 2.7, 3.1 and 3.2):
>>> a = set(["Blah", "Hello"])
>>> a = list(a) # You probably wrote a = list(a()) here or list = set() above
>>> a
['Blah', 'Hello']
Check th...
Creating a new directory in C
...;sys/stat.h>
#include <sys/types.h>
int result = mkdir("/home/me/test.txt", 0777);
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