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What is the difference between .map, .every, and .forEach?
... * 2
}).sort();
with .forEach(), you can't do the .sort(), you'll get an error.
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Rails “validates_uniqueness_of” Case Sensitivity
...hard one to solve because what the user will get back is the second (ugly) error and it will make them think their registration failed, when in reality it succeeded. The best way I've found to prevent this is just to use javascript to try to prevent double-submission.
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remove all variables except functions
...ion list.objects
# 3 integer x
> list.objects(env = x)
# Error in list.objects(env = x) : "x" must be an environment
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git: switch branch without detaching head
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Here's what I'm doing, and the error message: $ git checkout -b topic/fetch upstream/topic/fetch fatal: git checkout: updating paths is incompatible with switching branches. Did you intend to checkout 'upstream/topic/fetch' which can not be resolved as com...
static linking only some libraries
...tion to gcc the behavior is to only link static libraries and exit with an error if no static library can be found, even if there is an appropriate dynamic library.
Another option, which I have on several occasions wished gcc had, is what I call -mostly-static and is essentially the opposite of -dy...
JavaScript for detecting browser language preference [duplicate]
...simple short workaround for a task that usually does not end up into fatal errors. If you have to be absolutely sure of what language the user uses you could always ask him by adding on your site a select list and save its choice into a cookie.
– Marco Demaio
M...
How do I pass multiple parameters in Objective-C?
...ul when using functions that take a large number of arguments, and reduces error in passing the arguments.
Furthermore, the method naming convention is such because Objective-C doesn't support overloading; however, if you want to write a method that does the same job, but takes different data-types...
How to output messages to the Eclipse console when developing for Android
...em. There are also other methods depending on the severity of the message (error, verbose, warning, etc..).
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An “and” operator for an “if” statement in Bash
...ith your script.
Personal opinion: never use [[. It suppresses important error messages and is not portable to different shells.
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Code Golf: Collatz Conjecture
...gt; 5 --> 16 --> 8 --> 4 --> 2 --> 1
;
; There's even some error checking involved:
; >> $ ./collatz
; >> Usage: ./collatz NUMBER
;
section .text
global main
extern printf
extern atoi
main:
cmp dword [esp+0x04], 2
jne .usage
mov ebx, [esp+0x08]
push dword [ebx+...