The JavaScript exceptions thrown by JSON.parse() occur when string failed to be parsed as JSON.

The maskUnits attribute indicates which coordinate system to use for the geometry properties of the <mask> element.

The JavaScript exception "illegal character" occurs when there is an invalid or unexpected token that doesn't belong at this position in the code.

The max attribute specifies the maximum value of the active animation duration.

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.

A character escape represents a character that may not be able to be conveniently represented in its literal form.

The min attribute specifies the minimum value of the active animation duration.

The image-rendering attribute provides a hint to the browser about how to make speed vs. quality tradeoffs as it performs image processing.

A block statement is used to group zero or more statements. The block is delimited by a pair of braces ("curly braces") and contains a list of zero or more statements and declarations.

The get syntax binds an object property to a function that will be called when that property is looked up. It can also be used in classes.