The vert-adv-y attribute indicates the vertical advance after rendering a glyph in vertical orientation.

The JavaScript exception "missing ; before statement" occurs when there is a semicolon (;) missing somewhere and can't be added by automatic semicolon insertion (ASI). You need to provide a semicolon, so that JavaScript can parse the source code correctly.

The text-anchor attribute is used to align (start-, middle- or end-alignment) a string of pre-formatted text or auto-wrapped text where the wrapping area is determined from the inline-size property relative to a given point.

The JavaScript exception "right-hand side of 'in' should be an object" occurs when the in operator was used to search in strings, or in numbers, or other primitive types. It can only be used to check if a property is in an object.

The strikethrough-thickness attribute represents the ideal thickness of the strikethrough. The strikethrough thickness is expressed in the font's coordinate system.

A literal character specifies exactly itself to be matched in the input text.

The crossorigin attribute, valid on the <image> and <feImage> elements, provides support for configuration of the Cross-Origin Resource Sharing (CORS) requests for the element's fetched data.

The spreadMethod attribute determines how a shape is filled beyond the defined edges of a gradient.

The JavaScript exception "is not a constructor" occurs when there was an attempt to use an object or a variable as a constructor, but that object or variable is not a constructor.

The TypedArray.of() static method creates a new typed array from a variable number of arguments. This method is nearly the same as Array.of().