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How do the PHP equality (== double equals) and identity (=== triple equals) comparison operators dif
...t, and will be surprise cast to float against your will, causing a runtime error.
== is not transitive because "0"== 0, and 0 == "" but "0" != ""
PHP Variables that have not been declared yet are false, even though PHP has a way to represent undefined variables, that feature is disabled with ==.
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Why can't I assign a *Struct to an *Interface?
... me. I'm just wondering why (in that case), it's not simply a compile time error to say var pi *Interface.
– Simon Nickerson
Nov 22 '12 at 11:34
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Why doesn't Dictionary have AddRange?
...of the collection is left unchanged. As AddRange can fail due to duplicate errors, the way to keep its behavior consistent with Add would be to also make it atomic by throwing an exception on any duplicate, and leave the state of the original dictionary as unchanged.
As an API consumer, it would be...
How do I write stderr to a file while using “tee” with a pipe?
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thanks for that comment; I figured out what my logical error was afterwards: when invoked as an interactive shell, bash prints a command prompt and echoes exit to stderr. However, if stderr is redirected, bash starts as noninteractive by default; compare /bin/bash 2> err and /...
Can I mix Swift with C++? Like the Objective-C .mm files
...rom ObjCtoCPlusPlus.mm to ObjCtoCPlusPlus.h file, the compiler return this error: <unknown>:0: error: failed to import bridging header '/Users/Ale/Downloads/shared-master/C-ObjC-Swift/Performance_Console/Performance_Console/Performance_Console-Bridging-Header.h' it's possible move this impo...
Programmatically Determine a Duration of a Locked Workstation?
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Wow, works amazing! no errors no exceptions, smooth and clean!
– Mayer Spitzer
Oct 25 '17 at 17:39
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Deserialize JSON into C# dynamic object?
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I get an error in dynamic obj = serializer.Deserialize(json, typeof(object)); saying that no overload for method with 2 arguments..wrong dll or what?
– Stewie Griffin
Jun 18 '11 at 20:17
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How can I preview a merge in git?
...gin
$ git diff origin/master
IMO this solution is much easier and less error prone (and therefore much less risky) than the top solution which proposes "merge then abort".
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How to use SCNetworkReachability in Swift
...ermine whether the network is online. Just make your connection and handle errors if it fails. Making a connection can at times fire up the dormant offline radios.
The one valid use of Reachability is to use it to notify you when a network transitions from offline to online. At that point you shoul...
For loop example in MySQL
...clare str VARCHAR(255) default ''; in the MySQL (5.6) console gives me the error message Error 1064 (42000): ... for the right syntax to use near '' at line 3, which is as clear as mud (although I assume it doesn't like the DEFAULT clause).
– Agi Hammerthief
Ma...