The divisor attribute specifies the value by which the resulting number of applying the kernelMatrix of a <feConvolveMatrix> element to the input image color value is divided to yield the destination color value.

The glyph-name attribute specifies the name of a glyph.

Generally speaking, a function is a "subprogram" that can be called by code external (or internal, in the case of recursion) to the function. Like the program itself, a function is composed of a sequence of statements called the function body. Values can be passed to a function as parameters, and the function will return a value.

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

The k2 attribute defines one of the values to be used within the arithmetic operation of the <feComposite> filter primitive.

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 shape-rendering attribute provides hints to the renderer about what tradeoffs to make when rendering shapes like paths, circles, or rectangles.

The string attribute is a hint to the user agent, and specifies a list of formats that the font referenced by the parent <font-face-uri> element supports.

The JavaScript exception "invalid date" occurs when an invalid date is attempted to be converted to an ISO date string.

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.