Tutorial by Examples: ev

Parallelism in Haskell can be expressed using the Eval Monad from Control.Parallel.Strategies, using the rpar and rseq functions (among others). f1 :: [Int] f1 = [1..100000000] f2 :: [Int] f2 = [1..200000000] main = runEval $ do a <- rpar (f1) -- this'll take a while... b <- rpa...

Function countUnique(r As range) As Long 'Application.Volatile False ' optional Set r = Intersect(r, r.Worksheet.UsedRange) ' optional if you pass entire rows or columns to the function Dim c As New Collection, v On Error Resume Next ' to ignore the Run-time error 457: "Th...

By default, when data is imported to the PowerBI Desktop, each table or query stores data source details separately, even if they use the same data source. This makes it tedious, for example, to change the source database of an entire PowerBI report - which requires changing each query source param...

The MultiBinding allows binding multiple values to the same property. In the following example multiple values are bound to the Text property of a Textbox and formatted using the StringFormat property. <TextBlock> <TextBlock.Text> <MultiBinding StringFormat="{}{0}...

Normally, we opt this approach if we want complete encapsulation and don't want to make our methods public. Ascx <div style="width: 100%;"> <asp:Button ID="btnAdd" runat="server" Text="Add" OnClick="btnAdd_Click"></asp:butto...

@at-root directive can be used to localize variables. $color: blue; @at-root { $color: red; .a { color: $color; } .b { color: $color; } } .c { color: $color; } is compiled to: .a { color: red; } .b { color: red; } .c { color: blue; }

In many application it is necessary to compute the function of two or more arguments. Traditionally, we use for-loops. For example, if we need to calculate the f = exp(-x^2-y^2) (do not use this if you need fast simulations): % code1 x = -1.2:0.2:1.4; y = -2:0.25:3; for nx=1:lenght(x) for n...

productFlavors { // Define separate dev and prod product flavors. dev { // dev utilizes minSDKVersion = 21 to allow the Android gradle plugin // to pre-dex each module and produce an APK that can be tested on // Android Lollipop without time c...

Standard ML doesn't have built-in support for lazy evaluation. Some implementations, notably SML/NJ, have nonstandard lazy evaluation primitives, but programs that use those primitives won't be portable. Lazy suspensions can also be implemented in a portable manner, using Standard ML's module system...

It is a basic human instinct to assess risk and to accept or take some kind of action on that risk. This is the essence of security, which is the body of knowledge that provides a framework around this instinct. Security defines three key concepts in a triangular paradigm - Confidentiality, Integri...

Row-level security enables you to define some predicates that will control who could update rows in the table. First you need to define some table-value function that represents predicate that wll control access policy. CREATE FUNCTION dbo.pUserCanAccessProduct(@CompanyID int) RETURNS TABLE WIT...

Introduction Texas Instruments' (TI) CC26XX series SoCs are readily available wireless MCUs targeting Bluetooth Low Energy (BLE) applications. Along with the MCUs, TI offers a full-fledged software stack that provides necessary API and sample codes to help quickly get developers started with the to...

override func viewDidLoad() { super.viewDidLoad() NotificationCenter.default.addObserver(self, selector: Selector(("batteryStateDidChange:")), name: NSNotification.Name.UIDeviceBatteryStateDidChange, object: nil) NotificationCenter.default.addObserver(self, selector: Selecto...

You can set a variable to something with the eval() function by using something similar to the below code: var x = 10; var y = 20; var a = eval("x * y") + "<br>"; var b = eval("2 + 2") + "<br>"; var c = eval("x + 17") + "<br&...

EVALUATE a ALSO b ALSO TRUE WHEN 1 ALSO 1 THRU 9 ALSO c EQUAL 1 PERFORM all-life WHEN 2 ALSO 1 THRU 9 ALSO c EQUAL 2 PERFORM life WHEN 3 THRU 9 ALSO 1 ALSO c EQUAL 9 PERFORM disability WHEN OTHER PERFORM invalid END-EVALUATE

First, add the following permissions to the manifest of your project in order to enable device storage access: <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" /> <uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE" /> ...

PHPUnit has two assertions to check values of class properties: assertAttributeSame($expected, $actualAttributeName, $actualClassOrObject, $message = '') assertAttributeNotSame($expected, $actualAttributeName, $actualClassOrObject, $message = '') These methods will check the value of a object p...

The onTouchEvents() for nested view groups can be managed by the boolean onInterceptTouchEvent. The default value for the OnInterceptTouchEvent is false. The parent's onTouchEvent is received before the child's. If the OnInterceptTouchEvent returns false, it sends the motion event down the cha...

Using the NotificationCenter of iOS, which can be very powerful, you are able to intercept certain app-wide events: NotificationCenter.default.addObserver( self, selector: #selector(ViewController.do(_:)), name: NSNotification.Name.UIApplicationDidBecomeActive, o...

// 1.0 // Utilize the type argument and raw Strings to filter your // execution by the action function beforeLoad(type, form, request) { // Don't do anything on APPROVE // Note that `type` is an Object, so we must use ==, not === if (type == "approve") { return...