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What do the different readystates in XMLHttpRequest mean, and how can I use them?
...HttpRequest has 5 readyState s, and I only use 1 of them (the last one, 4 ).
5 Answers
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multiple tags
...
142
Yes, absolutely. You can have multiple header, nav, and footer tags sans penalty.
As long as y...
How to prevent gcc optimizing some statements in C?
...
Dietrich EppDietrich Epp
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...
Multiple Parameters for jQuery selector?
...by subclasses which narrow it down. Ah well.
– light24bulbs
Jun 3 '13 at 18:12
3
Is it faster for...
Retina displays, high-res background images
...
Do I need to double the size of the .box div to 400px by 400px to
match the new high res background image
No, but you do need to set the background-size property to match the original dimensions:
@media (-webkit-min-device-pixel-ratio: 2),
(min-resolution: 192dpi) { ...
List files in local git repo?
...
Cory Klein
36.8k2424 gold badges158158 silver badges216216 bronze badges
answered Dec 16 '11 at 11:16
karlphillipkarlp...
Zip lists in Python
...amine the length of the first element:
In [3]: result = zip(a, b, c)
In [4]: len(result[0])
Out[4]: 3
Of course, this won't work if the lists were empty to start with.
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improve this answe...
Difference between `set`, `setq`, and `setf` in Common Lisp?
...st the SET function.
What is now written as:
(setf (symbol-value '*foo*) 42)
was written as:
(set (quote *foo*) 42)
which was eventually abbreviavated to SETQ (SET Quoted):
(setq *foo* 42)
Then lexical variables happened, and SETQ came to be used for assignment to them too -- so it was no ...
os.path.dirname(__file__) returns empty
...|
edited Oct 16 '11 at 22:42
answered Oct 16 '11 at 9:06
Sv...