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How to write an XPath query to match two attributes?
...
//div[@id='..' and @class='...]
should do the trick. That's selecting the div operators that have both attributes of the required value.
It's worth using one of the online XPath testbeds to try stuff out.
sha...
How do you use bcrypt for hashing passwords in PHP?
...pt works internally. And there are a TON of answers about that. Here are a selection that I've written, that I won't copy/paste here, but link to:
Fundamental Difference Between Hashing And Encryption Algorithms - Explaining the terminology and some basic information about them.
About reversing ha...
fastest MD5 Implementation in JavaScript
...
While selecting library it's also important to see if it supports modern frameworks such as Bower, passes jslint, supports plugin model for JQuery or module systems such as AMD/RequireJS in addition to being in active development a...
What is the difference between user and kernel modes in operating systems?
...d 2 aren't used?
How is the current ring determined?
The current ring is selected by a combination of:
global descriptor table: a in-memory table of GDT entries, and each entry has a field Privl which encodes the ring.
The LGDT instruction sets the address to the current descriptor table.
See ...
How can I unit test Arduino code?
...tiplex four 7 segment displays, one port driving the segments and a second selecting the display. The display code interfaces with the displays via SetSegmentData(char) and SetDisplay(char). I can mock these in my C++ test rig and check that I get the data I expect. For the target I use #define so t...
How can I mask a UIImageView?
..."UIImageViewWithMask" (custom class name above).
On Attributes Inspector: Select mask image you
want to use.
Example
Notes
Your mask image should have a transparent background (PNG) for the non-black part.
share
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How do you parse and process HTML/XML in PHP?
...set to convert XML to an object that can be processed with normal property selectors and array iterators.
SimpleXML is an option when you know the HTML is valid XHTML. If you need to parse broken HTML, don't even consider SimpleXml because it will choke.
A basic usage example can be found at A s...
Rails: FATAL - Peer authentication failed for user (PG::Error)
...o check the version of postgres if multiple versions are available
psql=# select VERSION();
PostgreSQL 9.1.13 on x86_64-unk.... # so version is 9.1
Now Open postgres user
vim /etc/postgresql/9.1/main/pg_hba.conf
9.1 is version return form upper command
and replace
local all ...
Remove autolayout (constraints) in Interface Builder
...
Yes, the picture is better than the text in the selected answer, but this is the same solution, and it is posted more than a year later. Too bad that the two answers are not merged and the rep points shared :-)
– mins
Apr 28 '15 at 21...
Incorrect syntax near ')' calling stored procedure with GETDATE
...N
set @DateVar=ISNULL(@DateVar,GETDATE())
--the SP stuff here
SELECT @DateVar
END
GO
And then try:
EXEC DisplayDate '2013-02-01 00:00:00.000'
EXEC DisplayDate
Remark: Here I supposed that NULL value is not in use for this parameter. If it is not your case - you can use another unus...