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How does Google's Page Speed lossless image compression work?
...nefit from
// different parameters and this combination of 4 seems to work best for a large
// set of PNGs from the web.
const PngCompressParams kPngCompressionParams[] = {
PngCompressParams(PNG_ALL_FILTERS, Z_DEFAULT_STRATEGY),
PngCompressParams(PNG_ALL_FILTERS, Z_FILTERED),
PngCompressParams...
Why do table names in SQL Server start with “dbo”?
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As a best practice, I always add the "dbo." prefix even though it is not necessary. Most of the time in SQL it's good to be explicit.
– SurroundedByFish
Jun 30 '09 at 13:56
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Parse config files, environment, and command-line arguments, to get a single collection of options
...(config_files)
for dest,(args,init_dict) in self._action_defaults.items():
type_converter = init_dict['type']
default = init_dict['default']
obj = default
if getattr(ns,dest,_SENTINEL) is not _SENTINEL: # found on command line
...
Why would you use Oracle database? [closed]
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i disagree! Oracle is definitely one of the best implementations of RDBMS. It manages memory very efficiently and can handle complex JOIN operations which easilly cripple MySQL and MsSQL. Oracle has a great Architecture, it makes it rock solid because it is very easy t...
Check if array is empty or null
... not necessary here because the .each() loop wouldn't run if there were no items so $(this) inside your .each() loop will always be something.
It's inefficient to use $(this) multiple times in the same function. Much better to get it once into a local variable and then use it from that local variab...
How to add to an existing hash in Ruby
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If you have a hash, you can add items to it by referencing them by key:
hash = { }
hash[:a] = 'a'
hash[:a]
# => 'a'
Here, like [ ] creates an empty array, { } will create a empty hash.
Arrays have zero or more elements in a specific order, where elem...
how to emulate “insert ignore” and “on duplicate key update” (sql merge) with postgresql?
...'re dealing with large amounts of rows for example from a subquery, you're best of splitting it into two queries, one for INSERT and one for UPDATE (as an appropriate join/subselect of course - no need to write your main filter twice)
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How to override equals method in Java
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Item 10: Obey the general contract when overriding equals
According to Effective Java, Overriding the equals method seems simple, but there are many ways to get it wrong, and consequences can be dire. The easiest way to a...
Flushing footer to bottom of the page, twitter bootstrap
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This is the best solution I have attempted so far. Accepted this as the answer.
– Calvin Cheng
Oct 3 '12 at 7:19
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jQuery select all except first
...fastest-way-to-select-all-expect-the-first-one Depending on the number of items, $("li").not(":eq(0)") seems good.
– Damien
Dec 19 '12 at 15:41
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