We have already seen this type of binding, though, at the time, we didn’t actually use the term one-way binding.
What exactly do I mean by one-way binding? An easy way to understand this is by considering that a user cannot
change a value that is output as plain text content. This is in stark contrast to values that are output to text inputs and
other editable form elements. AngularJS has less work to do with the plain text output, as it does not have to manage
the relationship in both directions. Consequently, this is called a one-way binding. AngularJS will not waste resources
monitoring static content for changes.