Changed variable definition to use let keyword instead of # symbol
Changed variable definition to use let keyword instead of # symbol

Ihttps://github.com/angular/angular/blob/master/CHANGELOG.md#breaking-changes

zdrawku/zero-blocks,petko5kov/zero-blocks,zdrawku/zero-blocks,damyanpetev/zero-blocks,simeonoff/zero-blocks,simeonoff/zero-blocks,damyanpetev/zero-blocks,simeonoff/zero-blocks,zdrawku/zero-blocks,damyanpetev/zero-blocks,Infragistics/zero-blocks,petko5kov/zero-blocks,Infragistics/zero-blocks,petko5kov/zero-blocks,Infragistics/zero-blocks