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To construct a new array with uninitialized elements, use the constructor of this class. To construct a new array with specified elements, as if you used the array literal syntax in JavaScript, use the companion object's apply method instead.

Note that Javascript === equality semantics apply. JsArray does not know anything about Scala equals method or the case classes structural equality.

The Map object holds key-value pairs and remembers the original insertion order of the keys. Any value (both objects and primitive values) may be used as either a key or a value. The Map is mutable, like everything in JS.

Note that Javascript === equality semantics apply. JsMap does not know anything about Scala equals method or the case classes structural equality.

Set objects are collections of unique values. You can iterate through the elements of a set in insertion order. A value in the Set may only occur once; it is unique in the Set's collection. Sets are mutable, like everything in JS

Note that Javascript === equality semantics apply. JsSet does not know anything about Scala equals method or the case classes structural equality.

The Map object holds key-value pairs and remembers the original insertion order of the keys. Any value (both objects and primitive values) may be used as either a key or a value. The Map is mutable, like everything in JS.

JS-native operations on strings. Alternative to JSStringOps from Scala.js