What are Directives in Angular JS

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Directives allows us to create custom HTML elements and to manipulate DOM(Document Object Model).
There are three type of directives

1. Component directive
    Creates custom HTML elements or templates

2. Structural directives
    Allows us to add or remove elements on the DOM. ex: nGFor,ngIF

3. Attribute directives
    allows us to attached event listeners or style properties on elements

to create a directive we will have to import it from @angular/core and define a selector once done we will have to add a reference to it on app.module.ts


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