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Create unique constraint with null columns
...ase I'm gonna go the partial index route because it requires no changes to my schema and I like it :)
– Mike Christensen
Nov 27 '11 at 22:03
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Selectors in Objective-C?
First, I'm not sure I really understand what a selector is. From my understanding, it's the name of a method, and you can assign it to a class of type 'SEL' and then run methods such as respondToSelector to see if the receiver implements that method. Can someone offer up a better explanation?
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Remove empty array elements
Some elements in my array are empty strings based on what the user has submitted. I need to remove those elements. I have this:
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In c# is there a method to find the max of 3 numbers?
...ays write your own helper method... I would be happy enough seeing this in my code base once, but not regularly.
(Note that this is likely to be more efficient than Andrew's LINQ-based answer - but obviously the more elements you have the more appealing the LINQ approach is.)
EDIT: A "best of both...
How can I replace text with CSS?
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This works well. In my case, line-height: 0 and color: transparent on the main element and resetting those values on the pseudo do the job (no fiddling with text-indent)
– dontGoPlastic
Jun 9 '14 at 21:38
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From io.Reader to string in Go
...ake any calls on that buffer it will change the string. Be very careful.
My advice is to stick to the official method. Doing a copy is not that expensive and it is not worth the evils of unsafe. If the string is too large to do a copy, you should not be making it into a string.
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How to concatenate twice with the C preprocessor and expand a macro as in “arg ## _ ## MACRO”?
...ame, which is not syntactically valid, of course. (Now, please can I have my hair back?)
With GCC 6.3.0 (running cpp -traditional x-paste.c), I get:
# 1 "x-paste.c"
# 1 "<built-in>"
# 1 "<command-line>"
# 1 "x-paste.c"
extern void mine_3(char *x);
With Clang from XCode 8.2.1, I...
Adding a Method to an Existing Object Instance
... How would this work if the method being added needs to refer to self? My first try leads to a syntax error, but adding self in the definition of method doesn't seem to work. import types class A(object):#but seems to work for old style objects too ax = 'ax' pass def patch_me(target):...
What can be the reasons of connection refused errors?
... edited May 21 '15 at 18:55
Remy Lebeau
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answered Feb 25 '10 at 11:02
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target=“_blank” vs. target=“_new”
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@aesede: Read the spec. They are not valid, because "my_custom_name" may not be prefixed with an underscore. Thus "new" would be fine, but "_new" is not!
– fresskoma
Jul 3 '14 at 21:21
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