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import WatchConnectivity var watchSession : WCSession? override func awake(withContext context: Any?) { super.awake(withContext: context) // Configure interface objects here. startWatchSession() } func startWatchSession(){ if(WCSession....

func isValidEmail(email: String) -> Bool { let emailRegEx = "[A-Z0-9a-z._%+-]+@[A-Za-z0-9.-]+\\.[A-Za-z]{2,4}" let emailTest = NSPredicate(format:"SELF MATCHES %@", emailRegEx) return emailTest.evaluate(with: email) } or you could use String extensio...

Let's say that you have the following class: public class PersonInfo { public int ID { get; set; } [Display(Name = "First Name")] [Required(ErrorMessage = "Please enter your first name!")] public string FirstName{ get; set; } [Display(Name = "L...

In the file myConfig.groovy is the following content. message = 'Hello World!' aNumber=42 aBoolean=false aList=["apples", "grapes", "oranges"] Then in your main script you create a ConfigSlurper for your myConfig.groovy file which is really just another groovy sc...

Define a new visitor class by overriding some of the methods of ExpressionVisitor: class PrintingVisitor : ExpressionVisitor { protected override Expression VisitConstant(ConstantExpression node) { Console.WriteLine("Constant: {0}", node); return base.VisitConstant(...

Go to https://www.mozilla.org/firefox/new/. 1.Click on Download button. 2.An executable file will be downloaded. 3.Double click on the .exe file and click run. 4.Finish the setup. 5.Select the option of "Maintain shortcut on the desktop".

For iterating more than two lists simultaneously within list comprehension, one may use zip() as: >>> list_1 = [1, 2, 3 , 4] >>> list_2 = ['a', 'b', 'c', 'd'] >>> list_3 = ['6', '7', '8', '9'] # Two lists >>> [(i, j) for i, j in zip(list_1, list_2)] [(1, '...

Go to https://ftp.mozilla.org/pub/firefox/releases/ Find the list of older versions in the above link. Select the operating system you want to install in. Select the Language you want to install in. An executable will be downloaded. Run the .exe file to install the firef...

To test an add-on you are developing, you will likely desire to install it in Firefox temporarily. You can do so by loading it as a Temporary Add-on. To do so: Go to about:debugging Click on "Load Temporary Add-on" In the file picker, navigate to the directory containing the add-on f...

Create vectors to hold the x- and y-locations of vertices, feed these into patch. Single Polygon X=rand(1,4); Y=rand(1,4); h=patch(X,Y,'red'); Multiple Polygons Each polygon's vertices occupy one column of each of X, Y. X=rand(4,3); Y=rand(4,3); for i=2:3 X(:,i)=X(:,i)+(i-1); % create ...

Slightly counterintuitively (but also the only sane way to make it work), this: val dyn: Dynamic = ??? dyn.x(y) = z is equivalent to: dyn.selectDynamic("x").update(y, z) while dyn.x(y) is still dyn.applyDynamic("x")(y) It is important to be aware of this, or else...

Using a regular expression, parse a record name that might be hierarchical. The expression looks for the final colon in the name. It returns what follows the colon, or the entire name if none: regexp_substr( {name} , '[^:]*$' )

The example builds a string from the name of the parent record, the name of this record, and the memo of this record. {createdfrom} || ' ' || {name} || ' ' || {memo}

In a string formula field, consider that some values might contain substrings which look to the browser like HTML. Unless this is intentional, it is important to protect the values from corruption. This is useful to avoid injection attacks: it prevents someone from entering HTML into a comment field...

utl_url.escape( expression )

If you haven't already lets simply start this file of with: class HelloWorldLeftAndMain extends LeftAndMain { } Configure The first thing you should do, is define the $url_segment that will be used to access the interface, and the title ($menu_title) that will appear in the side navigation m...

The expected structure of this template can be a bit convoluted but it all boils down to this: There are 3 sections worth noting for this guide: .north .center .south It must be wrapped entirely within an element that has the data-pjax-fragment="Content" attribute. This is...

Access specifications for subversion repositories is specified etc/subversion/svn_access_control file Create/edit the file using following command nano /etc/subversion/svn_access_control Use following syntax to configure access permissions for repositories to group/members [Repository:<Path&g...

A higher-order function, as opposed to a first-order function, can have one of three forms: One or more of its parameters is a function, and it returns some value. It returns a function, but none of its parameters is a function. Both of the above: One or more of its parameters is a fu...

If we have a c++ project that uses a config.h configuration file with some custom paths or variables, we can generate it using CMake and a generic file config.h.in. The config.h.in can be part of a git repository, while the generated file config.h will never be added, as it is generated from the cu...