Monday, 3 April 2017

Topic (Angular) 3 - Built-In Directives

Ng-Show Directives


In Angular, we are given with options to show attributes or elements that we want to be displayed on our pages.  Lets say we have a button "Add to Cart" we want to display. In <button> tag we can include our ngShow directive .

<div ng-controller="StoreController as store" style="padding:20px;">
        
            <h1> {{productss.name}}</h1>
            <h2> ${{productss.price}}</h2>
            <p>{{productss.description}}</p>

            <button ng-show="productss.canPurchase">Add to Cart </button>
      
        </div>


This will produce a result :


Ng-Hide Directives


Likewise, we also can hide elements that we dont want to be displayed in our screen. Ng-hide are purposely to control elements or section that we want to be displayed. Lets say in our body class we have a controller  directive called StoreController alias store. The ng-hide directive inside <div> tag is to control either the instance of property either have a soldOut element which if is true then the product will be hide from being displayed.

<body class="container" ng-controller="StoreController as store">
    <div ng-hide="store.product.soldOut" class="product row">
      <h3>
        {{store.product.name}}
        <em class="pull-right">${{store.product.price}}</em>
      </h3>
      <button ng-show="store.product.canPurchase">Add to Cart</button>
    </div>
  </body>



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