The <view> SVG element defines a particular view of an SVG document. A specific view can be displayed by referencing the <view> element's id as the target fragment of a URL.

The yield* operator is used to delegate to another iterable object, such as a Generator.

The arabic-form attribute indicates which of the four possible forms an Arabic glyph represents.

The encodeURIComponent() function encodes a URI by replacing each instance of certain characters by one, two, three, or four escape sequences representing the UTF-8 encoding of the character (will only be four escape sequences for characters composed of two surrogate characters). Compared to encodeURI(), this function encodes more characters, including those that are part of the URI syntax.

The textual content for a <text> SVG element can be either character data directly embedded within the <text> element or the character data content of a referenced element, where the referencing is specified with a <tref> element.

The <title> SVG element provides an accessible, short-text description of any SVG container element or graphics element.

The typeof operator returns a string indicating the type of the operand's value.

The fy attribute defines the y-axis coordinate of the focal point for a radial gradient.

The comma (,) operator evaluates each of its operands (from left to right) and returns the value of the last operand. This is commonly used to provide multiple updaters to a for loop's afterthought.

The if...else statement executes a statement if a specified condition is truthy. If the condition is falsy, another statement in the optional else clause will be executed.