The <radialGradient> SVG element lets authors define radial gradients that can be applied to fill or stroke of graphical elements.

The escape() function computes a new string in which certain characters have been replaced by hexadecimal escape sequences.

Error objects are thrown when runtime errors occur. The Error object can also be used as a base object for user-defined exceptions. See below for standard built-in error types.

The AsyncGeneratorFunction object provides methods for async generator functions. In JavaScript, every async generator function is actually an AsyncGeneratorFunction object.

The clip attribute defines the visible region of an element. You should use clip-path instead.

The color-interpolation-filters attribute specifies the color space for imaging operations performed via filter effects.

A TypedArray object describes an array-like view of an underlying binary data buffer. There is no global property named TypedArray, nor is there a directly visible TypedArray constructor. Instead, there are a number of different global properties, whose values are typed array constructors for specific element types, listed below. On the following pages you will find common properties and methods that can be used with any typed array containing elements of any type.

The bitwise NOT (~) operator returns a number or BigInt whose binary representation has a 1 in each bit position for which the corresponding bit of the operand is 0, and a 0 otherwise.

The Proxy and Reflect objects allow you to intercept and define custom behavior for fundamental language operations (e.g., property lookup, assignment, enumeration, function invocation, etc.). With the help of these two objects you are able to program at the meta level of JavaScript.

Property accessors provide access to an object's properties by using the dot notation or the bracket notation.