T0 is an intersection X with Y or X & Y: this method is equivalent to x.isInstanceOf & x.T0 is some singleton type x.type or literal x: this method returns this.eq(x).įor example, x.isInstanceOf is equivalent to x.eq(1).The value of the receiver object is some List for any X.įor example, List(1, 2, 3).isInstanceOf] will return true. T0 is a parameterized class type, e.g.The value of the receiver object is a BigDecimal or a subtype of BigDecimal. T0 is a non-parameterized class type, e.g.Test whether the dynamic type of the receiver object has the same erasure as T0.ĭepending on what T0 is, the test is done in one of the below ways: Val errCapture = new ByteArrayOutputStream Val outCapture = new ByteArrayOutputStream Val input = new StringReader(s "$candidate\n") Or class M圜lass(myParam: MyType)( implicit ec: ExecutionContext) Request one from the caller by adding an implicit parameter list: def myMethod(myParam: MyType)( implicit ec: ExecutionContext) = …
#SCALA PRINT CODE#
If the code in question is a class or method definition, and no ExecutionContext is available, The general advice for these implicits are as follows. When using things like Futures, it is often required to have an implicit ExecutionContext When working with Futures, you will often find that importing the whole concurrent GuideĪ more detailed guide to Futures and Promises, including discussion and examples This package object contains primitives for concurrent and parallel programming. For example, on the JVM, String is an alias for. Other aliases refer to classes provided by the underlying platform. Some of these identifiers are type aliases provided as shortcuts to commonly used classes. This variable is evaluated by compiler and variable is. In the following example, a string variable is passed to string in the print function. You dont need to use + operator to format your output string. The s method of string interpolation allows us to pass variable in string object. Identifiers in the scala package and the scala.Predef object are always in scope by default. Scala String Interpolation Example By using s Method. scala.swing - A convenient wrapper around Java's GUI framework called Swing (scala-swing.jar).- Parser combinators (scala-parser-combinators.jar).- Parallel collections (scala-parallel-collections.jar).scala.xml - XML parsing, manipulation, and serialization (scala-xml.jar).scala.reflect - Scala's reflection API (scala-reflect.jar).See the complete list on the right.Īdditional parts of the standard library are shipped as separate libraries. scala.sys - Interaction with other processes and the operating system.scala.math - Basic math functions and additional numeric types like.ncurrent - Primitives for concurrent programming such as.
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