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What should my Objective-C singleton look like? [closed]
My singleton accessor method is usually some variant of:
26 Answers
26
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RRSet of type CNAME with DNS name foo.com. is not permitted at apex in zone bar.com
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As per RFC1912 section 2.4:
A CNAME record is not allowed to coexist with any other data. In
other words, if suzy.podunk.xx is an alias for sue.podunk.xx, you
can't also have an MX record for suzy.podunk.edu, or an A record, or
even a TXT record. Especially do not try t...
Ruby - test for array
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Type checking is for Java. Go ahead and just call count on the variable. Write unit tests to make sure the method works as expected.
– user132447
Mar 21 '12 at 14:55
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Check variable equality against a list of values
...an use the includes method. It's the cleanest way I've seen. (Supported by all major browsers, except IE (Polyfill is in the link)
if([1,3,12].includes(foo)) {
// ...
}
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Comparison of C++ unit test frameworks [closed]
... few questions regarding recommendations for C++ unit test frameworks, but all the answers did not help as they just recommend one of the frameworks but do not provide any information about a (feature) comparison.
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var functionName = function() {} vs function functionName() {}
...);
function functionTwo() {
console.log("Hello!");
}
Historically, function declarations defined within blocks were handled inconsistently between browsers. Strict mode (introduced in ES5) resolved this by scoping function declarations to their enclosing block.
'use strict';
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How can I create an object and add attributes to it?
...ant to make a "bunch class", a very simple one already exists in Python -- all functions can have arbitrary attributes (including lambda functions). So, the following works:
obj = someobject
obj.a = lambda: None
setattr(obj.a, 'somefield', 'somevalue')
Whether the loss of clarity compared to the...
How do you create a daemon in Python?
...Sander Marechal's code sample is superior to the original, which was originally posted in 2004. I once contributed a daemonizer for Pyro, but would probably use Sander's code if I had to do it over.
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Is there a way to make a DIV unselectable?
...t here: msdn.microsoft.com/en-us/library/hh801966(v=vs.85).aspx But I actually tested on IE, and it works correctly.
– KimKha
May 1 '13 at 15:27
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Use grep --exclude/--include syntax to not grep through certain files
... Any suggestions for what to use when --exclude-dir is unavailable? In all my attemps, --exclude does not appear to fit the bill.
– JMTyler
Mar 31 '14 at 18:05
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