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How to pass prepareForSegue: an object
...is the same as this line
if ([[segue identifier] isEqualToString:@"YOUR_SEGUE_NAME_HERE"])
{
// Get reference to the destination view controller
YourViewController *vc = [segue destinationViewController];
// Pass any objects to the view controller here, like...
...
How to detect the current OS from Gradle
...defs.condition.Os
task checkWin() << {
if (Os.isFamily(Os.FAMILY_WINDOWS)) {
println "*** Windows "
}
}
I found this in the following Gradle branch, and it seems to work nicely. gradle/gradle-core/branches/RB-0.3/build.gradle
...
How do I check CPU and Memory Usage in Java?
...first line)
For more info see: http://java.sun.com/docs/hotspot/gc5.0/gc_tuning_5.html
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jQuery validate: How to add a rule for regular expression validation?
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Or add it to validator like this: ... rules: { textbox_input_name_attr: { required: true, regex: "^[a-zA-Z'.\\s]{1,50}$" } }, ....
– Hans Kerkhof
Mar 10 '13 at 18:13
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Check that Field Exists with MongoDB
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Suppose we have a collection like below:
{
"_id":"1234"
"open":"Yes"
"things":{
"paper":1234
"bottle":"Available"
"bottle_count":40
}
}
We want to know if the bottle field is present or not?
Ans:
db.products.f...
What is the difference between Scala's case class and class?
...case Node(left, EmptyLeaf) => println("Can be reduced to "+left)
case _ => println(treeA+" cannot be reduced")
}
// Pattern matches can be safely done, because the compiler warns about
// non-exaustive matches:
def checkTree(t: Tree) = t match {
case Node(EmptyLeaf, Node(left, right)) =&g...
Split Strings into words with multiple word boundary delimiters
...erscores too, something the findall solution does not: print re.split("\W+|_", "Testing this_thing")' yields: ['Testing', 'this', 'thing']
– Emil Stenström
Jan 5 '12 at 0:26
66
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Set default CRAN mirror permanent in R
...?Startup:
The
path of this file is taken from the value of the R_PROFILE
environment variable (after tilde expansion). If this variable is
unset, the default is R_HOME/etc/Rprofile.site, which is used if
it exists (which it does not in a 'factory-fresh' installation)...
How to make an HTTP request + basic auth in Swift
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go plain for SWIFT 3 and APACHE simple Auth:
func urlSession(_ session: URLSession, task: URLSessionTask,
didReceive challenge: URLAuthenticationChallenge,
completionHandler: @escaping (URLSession.AuthChallengeDisposition, URLCredential?) -> Void) {
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UITextField text change event
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Add _ before textField in textFieldDidChange like this: func textFieldDidChange(textField: UITextField) { ... }
– Makalele
Jan 2 '17 at 23:32
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