The Promise[@@species] static accessor property returns the constructor used to construct return values from promise methods.

The compile() method of RegExp instances is used to recompile a regular expression with new source and flags after the RegExp object has already been created.

The padStart() method of String values pads this string with another string (multiple times, if needed) until the resulting string reaches the given length. The padding is applied from the start of this string.

The bold() method of String values creates a string that embeds this string in a <b> element (<b>str</b>), which causes this string to be displayed as bold.

The italics() method of String values creates a string that embeds this string in an <i> element (<i>str</i>), which causes this string to be displayed as italic.

The link() method of String values creates a string that embeds this string in an <a> element (<a href="...">str</a>), to be used as a hypertext link to another URL.

The Intl.ListFormat() constructor creates Intl.ListFormat objects.

The <metadata> SVG element adds metadata to SVG content. Metadata is structured information about data. The contents of <metadata> should be elements from other XML namespaces such as RDF, FOAF, etc.

An expression statement is an expression used in a place where a statement is expected. The expression is evaluated and its result is discarded — therefore, it makes sense only for expressions that have side effects, such as executing a function or updating a variable.

JavaScript supports a compact set of statements, specifically control flow statements, that you can use to incorporate a great deal of interactivity in your application. This chapter provides an overview of these statements.