The fill attribute has two different meanings. For shapes and text it's a presentation attribute that defines the color (or any SVG paint servers like gradients or patterns) used to paint the element; for animation it defines the final state of the animation.

The fx attribute defines the x-axis coordinate of the focal point for a radial gradient.

The ideographic attribute indicates the alignment coordinate for glyphs to achieve ideographic baseline alignment for horizontally oriented glyph layouts. The value is an offset in the font coordinate system.

List of Microsoft Extension Licenses

Visual Studio Code variable substitution reference

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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.

This guide gives you all you need to get started with JavaScript module syntax.

In programming, inheritance refers to passing down characteristics from a parent to a child so that a new piece of code can reuse and build upon the features of an existing one. JavaScript implements inheritance by using objects. Each object has an internal link to another object called its prototype. That prototype object has a prototype of its own, and so on until an object is reached with null as its prototype. By definition, null has no prototype and acts as the final link in this prototype chain. It is possible to mutate any member of the prototype chain or even swap out the prototype at runtime, so concepts like static dispatching do not exist in JavaScript.

A <glyph> defines a single glyph in an SVG font.