It is a property that is a single value type (not a structure). The presence of a boolean attribute on an element represents the true value, and the absence of the attribute represents the false value. Have a look at the most popular posts, possibly including: Perhaps my most relevant book: CSS Optimization Basics (2018). Dimensional Modeling Data Quality For example, you could embed a music video on your web page for your visitors to listen to and watch. Spatial Boolean Attributes: A number of attributes in HTML5 are boolean attributes. Aide à la programmation, réponses aux questions / Html / boolean attributs dans angular 2 templates - html, templates, angular. To represent a false value, the attribute has to be omitted altogether. Time OAuth, Contact attributs booléens dans 2 modèles angulaires - html, modèles, angulaire . To represent a false value, the attribute has to be omitted altogether. 4 - Documentation / Reference. w3schools.com. - HTML boolean attributes list Data (State) Linear Algebra Case-sensitive Treat attributes in case sensitive manner (useful for custom HTML tags) Collapse boolean attributes Omit attribute values from boolean attributes. Data Persistence The HTML 5