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<span>Prototype</span> <ul> <li class=" "> <a class="function" href="can-list.prototype.attr.html" title="Get or set elements in a List."> attr </a> </li> <li class=" "> <a class="function" href="can-list.prototype.each.html" title="Call a function on each element of a List."> each </a> </li> <li class=" "> <a class="function" href="can-list.prototype.filter.html" title="Filter the elements of a List, returning a new List instance with just filtered items."> filter </a> </li> <li class=" "> <a class="function" href="can-list.prototype.map.html" title="Call a function on each element of a List and return a new List instance from the results."> map </a> </li> <li class=" "> <a class="function" href="can-list.prototype.reverse.html" title="Reverse the order of a List."> reverse </a> </li> <li class=" "> <a class="function" href="can-list.prototype.splice.html" title="Insert and remove elements from a List."> splice </a> </li> </ul> </li> <li> <span>Static</span> <ul> <li class="current parent expanded"> <a class="property" href="can-list.Map.html" title="Specify the Map type used to make objects added to this list observable."> Map </a> </li> <li class=" "> <a class="function" href="can-list.extend.html" title=""> extend </a> </li> </ul> </li> </ul> </li> <li class=" "> <a class="module" href="can-map.html" title="Create observable objects."> can-map </a> </li> <li class=" "> <a class="module" href="can-map-backup.html" title=""> can-map-backup </a> </li> <li class=" "> <a class="module" href="can-map-define.html" title="Defines the type, initial value, get, set, remove, and serialize behavior for attributes of a Map."> can-map-define </a> </li> <li class=" "> <a class="module" href="can-view-href.html" title="Sets an element's href attribute so that it's url will set the specified attribute values on can-route."> can-view-href </a> </li> </ul> </li> </ul> </div> </div> <div id="right" class="column"> <div class="top-right"> <div class="top-right-top"> <ul 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data-show-screen-name="false">Follow @canjs</a><script async src="//platform.twitter.com/widgets.js" charset="utf-8"></script> </li> </ul> </div> <div class="breadcrumb"> <li><a href="../index.html">CanJS</a></li> / <li><a href="can-legacy.html">Legacy</a></li> / <li><a href="can-list.html">can-list</a></li> / <li><a href="can-list.Map.html">Map</a></li> <li class="breadcrumb-dropdown">/ <a> On this page</a> <ul class="on-this-page"></ul> </li> <div class="nav-toggle" title="Back to top"></div> </div> </div> <div class="bottom-right"> <article> <section class="title"> <div class="page-type"> <h1>Map</h1> <div>property</div> </div> <section class="description"> <p>Specify the Map type used to make objects added to this list observable.</p> </section> </section> <section class="on-this-page-table"> </section> <section class="title-footer"> <ul class="title-links">  <li><a href="//github.com/canjs/can-list/tree/v3.0.0/docs/Map.md">source</a></li>   </ul> </section> <div class="signature"> <h2 class="signature-title"> <code><a href="can-map.html" title="Create observable objects.">can-map</a></code> </h2> <p>When objects are added to a <code>List</code>, those objects are converted into can.Map instances. For example:</p> <pre><code> var list = new List(); list.push({name: "Justin"}); var map = list.attr(0); map.attr("name") //-> "Justin" </code></pre> <p>By changing <a href="can-list.Map.html" title="Specify the Map type used to make objects added to this list observable.">Map</a>, you can specify a different type of Map instance to create. For example:</p> <pre><code> var User = Map.extend({ fullName: function(){ return this.attr("first")+" "+this.attr("last") } }); User.List = List.extend({ Map: User }, {}); var list = new User.List(); list.push({first: "Justin", last: "Meyer"}); var user = list.attr(0); user.fullName() //-> "Justin Meyer" </code></pre> </div> <script type="text/javascript"> var docObject = {"src":{"path":"node_modules/can-list/docs/Map.md"},"description":"Specify the Map type used to make objects added to this list observable. \n","types":[{"type":"can-map","description":"When objects are added to a `List`, those objects are converted into can.Map instances. For example:\n\n var list = new List();\n list.push({name: \"Justin\"});\n\n var map = list.attr(0);\n map.attr(\"name\") //-> \"Justin\"\n\nBy changing [can-list.Map], you can specify a different type of Map instance to create. For example:\n\n var User = Map.extend({\n fullName: function(){\n return this.attr(\"first\")+\" \"+this.attr(\"last\")\n }\n });\n\n User.List = List.extend({\n Map: User\n }, {});\n\n var list = new User.List();\n list.push({first: \"Justin\", last: \"Meyer\"});\n\n var user = list.attr(0);\n user.fullName() //-> \"Justin Meyer\"\n"}],"title":"Map","name":"can-list.Map","type":"property","parent":"can-list.static","pathToRoot":".."}; </script> </article> <footer><p>CanJS is part of <a href="http://donejs.com" target="_blank">DoneJS</a>. 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