e todos based on their isDone property. @each 

To facilitate this, Ember...">

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  <meta property="og:title" content="Computed Properties and Aggregate Data - The Object Model - Ember Guides">

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  <meta property="og:description" content="Sometimes you have a computed property whose value depends on the properties of items in an array. For example, you may have an array of todo items, and want to calculate the incomplete todos