Programming languages all have built-in data structures, but these often differ from one language to another. This article attempts to list the built-in data structures available in JavaScript and what properties they have; these can be used to build other data structures. When possible, comparisons with other languages are drawn.
In HTML, the following link types indicate the relationship between two documents, in which one links to the other using an <a>, <area>, or <link> element.
The <frequency>CSS data type denotes a frequency dimension, like the pitch of a speaking voice. It consists of a <number> immediately followed by the unit. Like for any CSS dimension, there is no space between the unit literal and the number.