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    <p>If you look at how <a href="https://github.com/jashkenas/backbone/blob/1.0.0/backbone.js#L796" rel="nofollow"><code>where</code></a> works:</p> <pre><code>where: function(attrs, first) { if (_.isEmpty(attrs)) return first ? void 0 : []; return this[first ? 'find' : 'filter'](function(model) { for (var key in attrs) { if (attrs[key] !== model.get(key)) return false; } return true; }); } </code></pre> <p>you'll see that it just scanning the models and comparing attributes using <code>!==</code>. When you using <code>!==</code> or <code>===</code> (or <code>!=</code> or <code>==</code> for that matter) to compare arrays, the references are compared, not the content; for example, this is false:</p> <pre><code>[1] === [1] </code></pre> <p>The result is that searching for an array using <a href="http://backbonejs.org/#Collection-where" rel="nofollow"><code>where</code></a> doesn't work that well, <code>where</code> is meant to be a shortcut for searching for simple scalar values.</p> <p>If you need to search for an array, then you can use <a href="http://underscorejs.org/#filter" rel="nofollow"><code>filter</code></a> directly and you can use <a href="http://underscorejs.org/#isEqual" rel="nofollow"><code>_.isEqual</code></a> to help you compare things:</p> <pre><code>var models = coll.filter(function(m) { return _.isEqual(m.get('a'), data); }); </code></pre> <p>If you want one match, use <a href="http://underscorejs.org/#find" rel="nofollow"><code>find</code></a> instead of <code>filter</code>.</p> <p>Demo: <a href="http://jsfiddle.net/ambiguous/PZZv4/1/" rel="nofollow">http://jsfiddle.net/ambiguous/PZZv4/1/</a></p>
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    1. POHow to extract model from backbone collection on the basis of a field which is array of JSON
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    1. COBut i have both scaler and array values in one model. in that case what willl be good approach ?
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    2. COYes, `filter`/`find` with `_.isEqual` would work for scalars and arrays.
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    3. COThanks. It worked for me.
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