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Why should eval be avoided in Bash, and what should I use instead?
...than eval if you want to do something more complex:
# Add to scenario:
VAR_2='4 5 6'
# We could use:
local ref="${REF}_2"
echo "${!ref}"
# Versus the bash < 2 method, which might be simpler to those accustomed to eval:
eval "echo \"\$${REF}_2\""
Regardless, the new method is more intuitive, ...
How can jQuery deferred be used?
...he new Deferred object and the attached methods .when , .Deferred and ._Deferred .
11 Answers
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How to get the anchor from the URL using jQuery?
...xOf() and .substring(), like this:
var url = "www.aaa.com/task1/1.3.html#a_1";
var hash = url.substring(url.indexOf("#")+1);
You can give it a try here, if it may not have a # in it, do an if(url.indexOf("#") != -1) check like this:
var url = "www.aaa.com/task1/1.3.html#a_1", idx = url.indexOf("...
What's the canonical way to check for type in Python?
...
str.__subclasses__() only returns the direct subclasses of str, and does not do the same thing as issubclass() or isinstance(). (To do that, you would have to recursively call .__subclasses__().
– Thomas Wou...
How to stop creating .DS_Store on Mac? [closed]
...hToDSStore source code
NOTE: On 10.11 you can not inject code into system apps.
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Getting Checkbox Value in ASP.NET MVC 4
I'm working on an ASP.NET MVC 4 app. This app has a basic form. The model for my form looks like the following:
18 Answers
...
Is inline assembly language slower than native C++ code?
... it):
calcuAsm: # @calcuAsm
.Ltmp0:
.cfi_startproc
# BB#0:
testl %edx, %edx
jle .LBB0_2
.align 16, 0x90
.LBB0_1: # %.lr.ph
# =>This Inner Loop Header: Depth=1
imull $1000...
What does “program to interfaces, not implementations” mean?
...wered Apr 23 '10 at 10:31
this. __curious_geekthis. __curious_geek
40.1k2020 gold badges105105 silver badges132132 bronze badges
...
How do I remove duplicate items from an array in Perl?
...is as demonstrated in perlfaq4:
sub uniq {
my %seen;
grep !$seen{$_}++, @_;
}
my @array = qw(one two three two three);
my @filtered = uniq(@array);
print "@filtered\n";
Outputs:
one two three
If you want to use a module, try the uniq function from List::MoreUtils
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Type or namespace name does not exist [closed]
...r, and selecting properties. Target Framework should be visible in default Application tab.
– Cookie
Jan 2 '12 at 6:26
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