The text-anchor attribute is used to align (start-, middle- or end-alignment) a string of pre-formatted text or auto-wrapped text where the wrapping area is determined from the inline-size property relative to a given point.

The JavaScript exception "right-hand side of 'in' should be an object" occurs when the in operator was used to search in strings, or in numbers, or other primitive types. It can only be used to check if a property is in an object.

The strikethrough-thickness attribute represents the ideal thickness of the strikethrough. The strikethrough thickness is expressed in the font's coordinate system.

A literal character specifies exactly itself to be matched in the input text.

The crossorigin attribute, valid on the <image> and <feImage> elements, provides support for configuration of the Cross-Origin Resource Sharing (CORS) requests for the element's fetched data.

The spreadMethod attribute determines how a shape is filled beyond the defined edges of a gradient.

The JavaScript exception "is not a constructor" occurs when there was an attempt to use an object or a variable as a constructor, but that object or variable is not a constructor.

In this example, we use XHTML, SVG, JavaScript, and the DOM to animate a swarm of "motes". These motes are governed by two simple principles. First, each mote tries to move towards the mouse cursor, and second each mote tries to move away from the average mote position. Combined, we get this very natural-looking behavior.

The Array.fromAsync() static method creates a new, shallow-copied Array instance from an async iterable, iterable, or array-like object.

The length data property of an Array instance represents the number of elements in that array. The value is an unsigned, 32-bit integer that is always numerically greater than the highest index in the array.