The JavaScript exception "setter functions must have one argument" occurs when a setter is declared and the parameter list is not consisted of exactly one formal parameter.

The spread (...) syntax allows an iterable, such as an array or string, to be expanded in places where zero or more arguments (for function calls) or elements (for array literals) are expected. In an object literal, the spread syntax enumerates the properties of an object and adds the key-value pairs to the object being created.

The set syntax binds an object property to a function to be called when there is an attempt to set that property. It can also be used in classes.

The JavaScript exception "missing } after property list" occurs when there is a mistake in the object initializer syntax somewhere. Might be in fact a missing curly bracket, but could also be a missing comma.

The bitwise OR assignment (|=) operator performs bitwise OR on the two operands and assigns the result to the left operand.

The class keyword can be used to define a class inside an expression.

The yChannelSelector attribute indicates which color channel from in2 to use to displace the pixels in in along the y-axis.

The in operator returns true if the specified property is in the specified object or its prototype chain.

The targetY attribute determines the positioning in vertical direction of the convolution matrix relative to a given target pixel in the input image. The topmost row of the matrix is row number zero. The value must be such that: 0 <= targetY < y of order.

The visibility attribute lets you control the visibility of graphical elements. With a value of hidden or collapse the current graphics element is invisible.