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CSS background image alt attribute
...efore. I need to use alt tags on all images in a site including those used by CSS background-image attribute.
10 Answers
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Standardize data columns in R
... is accepted, I'll provide another answer for reference.
scale is limited by the fact that it scales all variables. The solution below allows to scale only specific variable names while preserving other variables unchanged (and the variable names could be dynamically generated):
library(dplyr)
se...
How to clone git repository with specific revision/changeset?
...mit enabling this feature. Note that some Git servers activate this option by default, e.g. Bitbucket Server enabled it since version 5.5+. See this answer on Stackexchange for a exmple of how to activate the configuration option.
UPDATE 1 For Git versions 1.7 < v < 2.5 use git clone and git...
Beginners Guide to Haskell? [closed]
... The "Study plan for Haskell" link has apparently been fixed by moving it to the Wayback Machine.
– simon
Oct 15 '11 at 8:48
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Creating an index on a table variable
...TP 3.1 it is now possible to declare filtered indexes for table variables. By RTM it may be the case that included columns are also allowed but the current position is that they "will likely not make it into SQL16 due to resource constraints"
/*SQL Server 2016 allows filtered indexes*/
DECLARE @T T...
How do you overcome the HTML form nesting limitation?
... Right this is excellent, but as of today a feature not supported by IE still disqualifies it for 'production' use
– Jako
Sep 25 '12 at 16:39
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Difference between Hashing a Password and Encrypting it
...gned to prevent the occurrence of collisions. You can attack a secure hash by the use of a rainbow table, which you can counteract by applying a salt to the hash before storing it.
Encrypting is a proper (two way) function. It's reversible, you can decrypt the mangled string to get original string ...
“using namespace” in c++ headers
...include s in their .h files. This seems to me to be dangerous since then by including that header in another program I will get the namespace imported into my program, maybe without realizing, intending or wanting it (header inclusion can be very deeply nested).
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Twitter Bootstrap - add top space between rows
...ere size is one of:
0 - for classes that eliminate the margin or padding by setting it to 0
1 - (by default) for classes that set the margin or padding to $spacer * .25
2 - (by default) for classes that set the margin or padding to $spacer * .5
3 - (by default) for classes that set the margin or p...
Does Java have a HashMap with reverse lookup?
...ian I would call this kind of structure "a map what lets you lookup values by key or the other way around"
– Dónal
Mar 22 '12 at 16:44
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