Method definition is a shorter syntax for defining a function property in an object initializer. It can also be used in classes.

The constructor method is a special method of a class for creating and initializing an object instance of that class.

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

The filterUnits attribute defines the coordinate system for the attributes x, y, width and height.

The multiplication assignment (*=) operator performs multiplication on the two operands and assigns the result to the left operand.

The less than (<) operator returns true if the left operand is less than the right operand, and false otherwise.

The font-style attribute specifies whether the text is to be rendered using a normal, italic, or oblique face.

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.

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

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