The values attribute has different meanings, depending upon the context where it's used, either it defines a sequence of values used over the course of an animation, or it's a list of numbers for a color matrix, which is interpreted differently depending on the type of color change to be performed.

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 JavaScript exception "can't access private field or method: object is not the right class" or "can't set private field: object is not the right class" occurs when a private field or method is get or set on an object that does not have this private property defined.

The word-spacing attribute specifies spacing behavior between words.

The writing-mode attribute specifies whether the initial inline-progression-direction for a <text> element shall be left-to-right, right-to-left, or top-to-bottom. The writing-mode attribute applies only to <text> elements; the attribute is ignored for <tspan> and <textPath> sub-elements. (Note that the inline-progression-direction can change within a <text> element due to the Unicode bidirectional algorithm and properties direction and unicode-bidi.)

The JavaScript exception "rest parameter may not have a default" occurs when a rest parameter has a default value. Because the rest parameter always creates an array, the default value would never apply.

The transform-origin SVG attribute sets the origin for an item's transformations.

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

The vector-effect property specifies the vector effect to use when drawing an object. Vector effects are applied before any of the other compositing operations, i.e., filters, masks and clips.

The repeatDur attribute specifies the total duration for repeating an animation.