What are Expressions in AngularJS?

AngularJS expressions are much like JavaScript expressions, placed inside HTML templates by using double braces such as: {{expression}}. AngularJS evaluates expressions and then dynamically adds the result to a web page. Like JavaScript expressions, they can contain literals, operators, and variables.
There are some valid AngularJS expressions:

• {{ 1 + 2 }}

• {{ x + y }}

• {{ x == y }}

• {{ x = 2 }}


• {{ user.Id }}