The with statement extends the scope chain for a statement.

The result attribute defines the assigned name for this filter primitive. If supplied, then graphics that result from processing this filter primitive can be referenced by an in attribute on a subsequent filter primitive within the same <filter> element. If no value is provided, the output will only be available for re-use as the implicit input into the next filter primitive if that filter primitive provides no value for its in attribute.

The spacing attribute indicates how the user agent should determine the spacing between typographic characters that are to be rendered along a path.

The rotate attribute specifies how the animated element rotates as it travels along a path specified in an <animateMotion> element.

The stroke-dasharray attribute is a presentation attribute defining the pattern of dashes and gaps used to paint the outline of the shape.

A character class escape is an escape sequence that represents a set of characters.

A non-capturing group groups a subpattern, allowing you to apply a quantifier to the entire group or use disjunctions within it. It acts like the grouping operator in JavaScript expressions, and unlike capturing groups, it does not memorize the matched text, allowing for better performance and avoiding confusion when the pattern also contains useful capturing groups.

The JavaScript exception "No Promise in Promise.any was resolved" occurs when all promises passed to Promise.any() are rejected. It is the only built-in usage of AggregateError.

The JavaScript exception "Invalid code point" occurs when NaN values, negative Integers (-1), non-Integers (5.4), or values larger than 0x10FFFF (1114111) are used with String.fromCodePoint().

The mask attribute is a presentation attribute mainly used to bind a given <mask> element with the element the attribute belongs to.