Directives | HTML annotations that trigger JS behaviors |
Modules | Where our application components live |
Controllers | Where we add application behavior |
Expressions | How values get displayed within the page |
ng-app
Specifies where our app exists on the page
ng-model
Binds the value of the input to the variable, in both directions
{{ name }}
Add dynamic content (in this case, the variable name) to our static HTML by wrapping it in double curly braces {{ }}
Controller manages some portion of our application or a scope on our page
A directive is a marker on an HTML tag that tells Angular to run or reference some JavaScript code. Directives is how we bind the behaviour
For example ng-controller
, ng-app
, ng-model
etc.
ng-hide
and ng-show
hide and show things respectively, based on boolean values. For example:
<button ng-show="store.product.canPurchase">Add to Cart</button>
will only show the ‘Add to Cart’ button if canPurchase
is set to true
..
ng-repeat
will repeat (loop) the properties of an array, like the jQuery each()
method.
<div ng-repeat="product in store.products" class="product row">
<h3>
{{product.name}}
<em class="pull-right">${{product.price}}</em>
</h3>
</div>
Modules are where we write pieces of our Angular application. Where we define dependencies for our app.
Expressions allow you to insert dynamic values in your HTML
For example: {{ name }}
, {{ title }}
etc.
<p>{{ 4 + 6 }}</p>
will output
<p>10</p>
Similarly
<p>{{ "hello " + "you" }}</p>
will output
<p>hello you</p>
Controllers are where we define our app’s behavior by defining functions and values.