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Rails nested form with has_many :through, how to edit attributes of join model?
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Visual clarity really does go a long way, T.J. Schuck.
– ahnbizcad
Jul 17 '14 at 23:44
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How do I connect to a specific Wi-Fi network in Android programmatically?
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how about if the desired Wifi Hotspot doesn't use any Password at all.... Should we use the .preSharedKey = null; or should we set .preSharedKey = ""; Which one is correct? @kenota
– gumuruh
Jul 19 '14 at 6:08
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Check if a table exists in Rails
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That would execute:
DROP TABLE IF EXISTS posts
If the table doesn't exist, if_exists: false (the default) raises an exception whereas if_exists: true does nothing.
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How to pass macro definition from “make” command line arguments (-D) to C source code?
... "CFLAGS = $(CFLAGS) -Wall"; this would be a recursive definition and make does not allow this. You could use "CFLAGS := $(CFLAGS) -Wall", or "CFLAGS += -Wall", but those won't work either because an assignment on the command line has a higher precedence. You could use "override CFLAGS += -Wall", ...
Fastest way to convert Image to Byte array
...ossless format. If you're worried about CPU resources, pick a format which doesn't bother compressing - just raw ARGB pixels, for example. But of course that will lead to a larger byte array.
Note that if you pick a format which does include compression, there's no point in then compressing the byt...
What is token-based authentication?
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if the token expires does the user have to log in again to get a new token?
– Anthony To
Feb 28 '15 at 22:21
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What should my Objective-C singleton look like? [closed]
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If the runtime will only ever call this once, what does the BOOL do? Is that a precaution in case someone calls this function explicitly from their code?
– Aftermathew
Apr 3 '09 at 17:28
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What is a mutex?
...s often (if not always) based on a operating system mutex.
Some languages doesn't need this construct, due to the paradigm, for example functional programming (Haskell, ML are good examples).
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How do I push amended commit to the remote Git repository?
... because you shouldn't do it. GabrielleV's solution works fine, because it doesn't change history.
– user411279
Oct 24 '13 at 14:41
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What are “res” and “req” parameters in Express functions?
... should JSON serialize them. The built-in JSON.stringify() function
// does that.
var peopleJSON = JSON.stringify(people);
// Now, we can use the response object's send method to push that string
// of people JSON back to the browser in response to this request:
response.send(peopleJSO...