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What is the difference between Amazon S3 and Amazon EC2 instance?
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David LevesqueDavid Levesque
20k88 gold badges6060 silver badges7575 bronze badges
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Why is a round-trip conversion via a string not safe for a double?
...UMBER {
int precision;
int scale;
int sign;
wchar_t digits[20 + 1];
NUMBER() : precision(0), scale(0), sign(0) {}
};
#define I64(x) x##LL
static const unsigned long long rgval64Power10[] = {
// powers of 10
/*1*/ I64(0xa000000000000000),
/*2*/ I64(0xc800000000000000...
Test for equality among all elements of a single vector
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answered Jan 20 '11 at 21:06
hadleyhadley
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How to generate serial version UID in Intellij
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Without any plugins:
You just need to enable highlight: (Idea v.2016, 2017 and 2018, previous versions may have same or similar settings)
File -> Settings -> Editor -> Inspections -> Java -> Serialization issues -> Serializable class without 'serialVersionUID' - set...
Getting DOM elements by classname
...ough.
– prodigitalson
Jun 18 '11 at 20:20
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show 4 more co...
Using jQuery to see if a div has a child with a certain class
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201
You can use the find function:
if($('#popup').find('p.filled-text').length !== 0)
// Do St...
How to enumerate a range of numbers starting at 1
...ed, this is straightforward to do in Python 2.6 or newer:
enumerate(range(2000, 2005), 1)
Python 2.5 and older do not support the start parameter so instead you could create two range objects and zip them:
r = xrange(2000, 2005)
r2 = xrange(1, len(r) + 1)
h = zip(r2, r)
print h
Result:
[(1, ...
Array.Add vs +=
...and the added value. For example, to add an element with a
value of 200 to the array in the $a variable, type:
$a += 200
Source: about_Arrays
+= is an expensive operation, so when you need to add many items you should try to add them in as few operations as possible, ex:
$arr = 1..3...
Python Linked List
...a linked list).
– jfs
Oct 19 '13 at 20:26
3
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How to get the screen width and height in iOS?
... screen width without padding. Simply subtract your app's padding (usually 20 on each side) from these results to get the 'usable' space for most elements
– Nick Daugherty
Aug 30 '12 at 16:25
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