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Unique Key constraints for multiple columns in Entity Framework
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edited May 6 '14 at 17:05
answered Apr 15 '14 at 17:02
c...
AJAX in Chrome sending OPTIONS instead of GET/POST/PUT/DELETE?
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I had a similar issue with my own proxy to bypass CORS and I got the same error of POST->OPTION in Chrome. It was the Authorization header in my case ("x-li-format" and "X-UserName" here in your case.) I ended up passing it in a dummy format (e.g. AuthorizatinJack in GET) and I changed the cod...
How to highlight text using javascript
...clude jQuery.
– Roy
Feb 9 '16 at 16:05
10
@Roy I've taken this to heart. Good news, as of v6.0.0 ...
Getting MAC Address
...ing the output of another program doesn't seem very elegant not to mention error prone.
14 Answers
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What's the difference between Ruby's dup and clone methods?
...does not.
o = Object.new
def o.foo
42
end
o.dup.foo # raises NoMethodError
o.clone.foo # returns 42
Second, clone preserves the frozen state, while dup does not.
class Foo
attr_accessor :bar
end
o = Foo.new
o.freeze
o.dup.bar = 10 # succeeds
o.clone.bar = 10 # raises RuntimeError
The...
Create a “with” block on several context managers? [duplicate]
...a-separated expressions with parentheses results in the report of a syntax error. With the backslash, I get an "E127 continuation line over-indented" warning. I have yet to find a way to use this syntax while suppressing all warnings.
– Darren Ringer
Mar 9 '1...
CSS \9 in width property
...meaning of this? I am guessing it is a browser hack, but I have not been able to find what exactly it does.
4 Answers
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How to find keys of a hash?
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edited Mar 6 '19 at 15:05
Jost
18122 silver badges1515 bronze badges
answered Aug 3 '11 at 3:02
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Python pip install fails: invalid command egg_info
...ntly often when I try to install a Python package using pip , I get the error(s) below.
15 Answers
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Create a custom event in Java
...unding declaration in the body of a class method results in a compile-time error." -- JLS for Java 5, §8.4.3.2
– cHao
Aug 3 '14 at 5:23
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