What is interpolation in angular ?

Templates always need text or string to be dynamic at runtime. So angular given us

Interpolation technique to title, username, error messages etc

We put inside {{text }} double curly braces

Class file

userName = “Anil”

Template

Welcome, {{userName}}

Some time we need maths expression

Conditions

Real Count Wins {{ total + 56 == 200 ? “Winner”: “Loser”}}

Can’t use javascript expression

+= , new , instanceof , typeof , ;

Angular runs template expressions after every change detection cycle runs.