The trait js.Any is the root of the hierarchy of JavaScript types.
This package defines important subtypes of js.Any that are defined
in the standard library of ECMAScript 5.1 (or ES 6, with a label in the
documentation), such as js.Object, js.Array and
js.RegExp.
Implicit conversions to and from standard Scala types to their equivalent
in JavaScript are provided. For example, from Scala functions to JavaScript
functions and back.
The most important subtypes of js.Any declared in this package are:
js.Object, the superclass of most (all) JavaScript classes
The trait js.Dynamic is a special subtrait of js.Any. It can
represent any JavaScript value in a dynamically-typed way. It is possible
to call any method and read and write any field of a value of type
js.Dynamic.
There are no explicit definitions for JavaScript primitive types, as one
could expect, because the corresponding Scala types stand in their stead:
Boolean is the type of primitive JavaScript booleans
Double is the type of primitive JavaScript numbers
String is the type of primitive JavaScript strings (or null)
Unit is the type of the JavaScript undefined value
Null is the type of the JavaScript null value
js.UndefOr gives a scala.Option-like interface where the
JavaScript value undefined takes the role of None.
A | B is an unboxed pseudo-union type, suitable to type values that
admit several unrelated types in facade types.
Types, methods and values for interoperability with JavaScript libraries.
This package is only relevant to the Scala.js compiler, and should not be referenced by any project compiled to the JVM.
Guide
General documentation on Scala.js is available at http://www.scala-js.org/doc/.
Overview
The trait js.Any is the root of the hierarchy of JavaScript types. This package defines important subtypes of js.Any that are defined in the standard library of ECMAScript 5.1 (or ES 6, with a label in the documentation), such as js.Object, js.Array and js.RegExp.
Implicit conversions to and from standard Scala types to their equivalent in JavaScript are provided. For example, from Scala functions to JavaScript functions and back.
The most important subtypes of js.Any declared in this package are:
thisas an explicit parameterThe trait js.Dynamic is a special subtrait of js.Any. It can represent any JavaScript value in a dynamically-typed way. It is possible to call any method and read and write any field of a value of type js.Dynamic.
There are no explicit definitions for JavaScript primitive types, as one could expect, because the corresponding Scala types stand in their stead:
null)Nullis the type of the JavaScript null valuejs.UndefOr gives a scala.Option-like interface where the JavaScript value
undefinedtakes the role ofNone.A | B is an unboxed pseudo-union type, suitable to type values that admit several unrelated types in facade types.