The values() method of Array instances returns a new array iterator object that iterates the value of each item in the array.

The Map() constructor creates Map objects.

The WeakRef() constructor creates WeakRef objects.

The rest parameter syntax allows a function to accept an indefinite number of arguments as an array, providing a way to represent variadic functions in JavaScript.

« SVG Attribute reference home

The for await...of statement creates a loop iterating over async iterable objects as well as sync iterables. This statement can only be used in contexts where await can be used, which includes inside an async function body and in a module.

Property accessors provide access to an object's properties by using the dot notation or the bracket notation.

The additive attribute controls whether or not an animation is additive.

The grouping ( ) operator controls the precedence of evaluation in expressions. It also acts as a container for arbitrary expressions in certain syntactic constructs, where ambiguity or syntax errors would otherwise occur.

The unicode-range attribute defines the range of ISO 10646 characters possibly covered by the glyphs in a font.