using CanDeactivate class route guard to prevent users from navigating with unsaved entries.
In this article we learn about, 1.What is CSS Preprocessor? 2.Installations 3.How to useVariables? 4.Preprocessor Based Popular CSS Frameworks 5.What is Crunch? 6.How to use math function in LESS? 7.How to use arithmetic in LESS? 8.Mixins 9.Benefits of CSS preprocessor10.What is next? 1.What is CSS preprocessor?CSS preprocessor is nothing but which is a scripting language that extends CSS and gets compiled into regular CSS syntax.Popular CSS prep...