angular.Array.indexOf.html

<h1>angular.Array.indexOf</h1>
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  <legend>Work In Progress</legend>
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<h2>Description</h2>
<p>Determines the index of <code>value</code> in <code>array</code>.</p>

<p>Note: this function is used to augment the Array type in angular expressions. See
<a href="#!angular.Array"><code>angular.Array</code></a> for more info.</p>
<h2>Usage</h2>
<tt ng:non-bindable>
angular.Array.indexOf(array, value);
</tt>
<h3>Parameters</h3>
<ul>
    <li><tt>array</tt> –
      <tt>&#123;Array&#125;</tt>
      <tt></tt>
      – Array to search.</li>
    <li><tt>value</tt> –
      <tt>&#123;*&#125;</tt>
      <tt></tt>
      – Value to search for.</li>
  </ul>
<h3>Returns</h3>
<tt>&#123;number&#125;</tt> The position of the element in <code>array</code>. The position is 0-based. <code>-1</code> is returned if the value can't be found.
<h2>Example</h2>
<doc:example>
  <doc:source>
&lt;div ng:init="books = ['Moby Dick', 'Great Gatsby', 'Romeo and Juliet']"&gt;&lt;/div&gt;
&lt;input name='bookName' value='Romeo and Juliet'&gt; &lt;br&gt;
Index of '{{bookName}}' in the list {{books}} is &lt;em&gt;{{books.$indexOf(bookName)}}&lt;/em&gt;.
  </doc:source>
  <doc:scenario>     it('should correctly calculate the initial index', function() {
       expect(binding('books.$indexOf(bookName)')).toBe('2');
     });
     it('should recalculate', function() {
       input('bookName').enter('foo');
       expect(binding('books.$indexOf(bookName)')).toBe('-1');
       input('bookName').enter('Moby Dick');
       expect(binding('books.$indexOf(bookName)')).toBe('0');
     });</doc:scenario>
</doc:example>