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What makes a keychain item unique (in iOS)?
..., kSecAttrPort and kSecAttrPath.
For a keychain item of class kSecClassCertificate, the primary key is the combination of kSecAttrCertificateType, kSecAttrIssuer and kSecAttrSerialNumber.
For a keychain item of class kSecClassKey, the primary key is the combination of kSecAttrApplicationLabel, kSecA...
How to convert a string to lower case in Bash?
...ing, or does your last example (in Bash) actually do something completely different? It works for "ABX", but if you instead make word="Hi All" like the other examples, it returns ha, not hi all. It only works for the capitalized letters and skips the already-lowercased letters.
...
jQuery change input text value
...'input.sitebg').val('000000');
but you should really be using unique IDs if you can.
You can also get more specific, such as:
$('input[type=text].sitebg').val('000000');
EDIT:
do this to find your input based on the name attribute:
$('input[name=sitebg]').val('000000');
...
How do you effectively model inheritance in a database?
... key to the base class table; the derived table's class contains only the different elements.
So for example:
class Person {
public int ID;
public string FirstName;
public string LastName;
}
class Employee : Person {
public DateTime StartDate;
}
Would result in tables like:
tab...
Golang production web application configuration
...han HAProxy and capable of doing more).
HAProxy is very easy to configure if you read its documentation (HTML version). My whole haproxy.cfg file for one of my Go projects follows, in case you need a starting pont.
global
log 127.0.0.1 local0
maxconn 10000
user ...
How to get xdebug var_dump to show full object/array
... = -1
Of course, these may also be set at runtime via ini_set(), useful if you don't want to modify php.ini and restart your web server but need to quickly inspect something more deeply.
ini_set('xdebug.var_display_max_depth', '10');
ini_set('xdebug.var_display_max_children', '256');
ini_set('x...
How to show line number when executing bash script
... , so the script would stop when error occurs. However, it's still rather difficult for me to locate which line did the execution stop in order to locate the problem.
Is there a method which can output the line number of the script before each line is executed?
Or output the line number before the c...
Specify format for input arguments argparse python
... other question that you edited out can you point me to the documentation (if any) for that?
– Sohaib
Aug 24 '14 at 10:58
...
Can a for loop increment/decrement by more than one?
...ST; ADVANCE) {
BODY
}
Means the following:
INIT;
while (true) {
if (!TEST)
break;
BODY;
ADVANCE;
}
You can write almost any expression for INIT, TEST, ADVANCE, and BODY.
Do note that the ++ operators and variants are operators with side-effects (one should try to avoid ...
Select all 'tr' except the first one
... crossbrowser way of selecting the rows you want with CSS alone.
However, if you don't care about Internet Explorer 6, 7 or 8:
tr:not(:first-child) {
color: red;
}
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