The parseFloat() function parses a string argument and returns a floating point number.

The attributeType attribute specifies the namespace in which the target attribute and its associated values are defined.

The <text> SVG element draws a graphics element consisting of text. It's possible to apply a gradient, pattern, clipping path, mask, or filter to <text>, like any other SVG graphics element.

The Float64Array typed array represents an array of 64-bit floating point numbers in the platform byte order. If control over byte order is needed, use DataView instead. The contents are initialized to 0 unless initialization data is explicitly provided. Once established, you can reference elements in the array using the object's methods, or using standard array index syntax (that is, using bracket notation).

The Intl namespace object contains several constructors as well as functionality common to the internationalization constructors and other language sensitive functions. Collectively, they comprise the ECMAScript Internationalization API, which provides language sensitive string comparison, number formatting, date and time formatting, and more.

The logical OR assignment (||=) operator only evaluates the right operand and assigns to the left if the left operand is falsy.

The <vkern> SVG element allows to fine-tweak the vertical distance between two glyphs in top-to-bottom fonts. This process is known as kerning.

The alignment-baseline attribute specifies how an object is aligned with respect to its parent. This property specifies which baseline of this element is to be aligned with the corresponding baseline of the parent. For example, this allows alphabetic baselines in Roman text to stay aligned across font size changes. It defaults to the baseline with the same name as the computed value of the alignment-baseline property.

The <rect> SVG element is a basic SVG shape that draws rectangles, defined by their position, width, and height. The rectangles may have their corners rounded.

The bias attribute shifts the range of the filter. After applying the kernelMatrix of the <feConvolveMatrix> element to the input image to yield a number and applied the divisor attribute, the bias attribute is added to each component. This allows representation of values that would otherwise be clamped to 0 or 1.