This chapter documents all of JavaScript's standard, built-in objects, including their methods and properties.

The isNaN() function determines whether a value is NaN, first converting the value to a number if necessary. Because coercion inside the isNaN() function can be surprising, you may prefer to use Number.isNaN().

JavaScript is a prototype-based language — an object's behaviors are specified by its own properties and its prototype's properties. However, with the addition of classes, the creation of hierarchies of objects and the inheritance of properties and their values are much more in line with other object-oriented languages such as Java. In this section, we will demonstrate how objects can be created from classes.

The <animate> SVG element provides a way to animate an attribute of an element over time.

Changing the color theme in Visual Studio Code. You can use color themes provided by VS Code, the community or create your own new themes.

Visual Studio Code command-line interface (switches).

The fy attribute defines the y-axis coordinate of the focal point for a radial gradient.

The glyph-orientation-horizontal attribute affects the amount that the current text position advances as each glyph is rendered.

The href attribute defines a link to a resource as a reference URL. The exact meaning of that link depends on the context of each element using it.

The diffuseConstant attribute represents the kd value in the Phong lighting model. In SVG, this can be any non-negative number.