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POUsing ScrollSpy in AngularJS
 

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  1. POUsing ScrollSpy in AngularJS
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    <p>I'm new to AngularJS. I'm using AngularJS 1.2.5 and Bootstrap 3.0. I'm trying to include ScrollSpy in my app. However, I'm having some challenges. I'm trying to incorporate the code found <a href="https://gist.github.com/alxhill/6886760" rel="nofollow">here</a>. Currently, my code looks like this:</p> <p><strong>index.html</strong></p> <pre><code>&lt;div class="row" scroll-spy&gt; &lt;div class="col-md-3 sidebar"&gt; &lt;ul style="position:fixed;" class="nav nav-pills nav-stacked"&gt; &lt;li class="active" spy="overview"&gt;&lt;a href="#overview"&gt;Overview&lt;/a&gt;&lt;/li&gt; &lt;li spy="main"&gt;&lt;a href="#main"&gt;Main Content&lt;/a&gt;&lt;/li&gt; &lt;li spy="summary"&gt;&lt;a href="#summary"&gt;Summary&lt;/a&gt;&lt;/li&gt; &lt;li spy="links"&gt;&lt;a href="#links"&gt;Other Links&lt;/a&gt;&lt;/li&gt; &lt;/ul&gt; &lt;/div&gt; &lt;div class="col-md-9 content"&gt; &lt;h3 id="overview"&gt;Overview&lt;/h3&gt; Lorem Ipsum Text goes here... &lt;h3 id="main"&gt;Main Body&lt;/h3&gt; Lorem Ipsum Text goes here... &lt;h3 id="summary"&gt;Summary&lt;/h3&gt; Lorem Ipsum text goes here... &lt;h3 id="links"&gt;Other Links&lt;/h3&gt; &lt;/div&gt; &lt;/div&gt; </code></pre> <p><strong>index.html.js</strong></p> <pre><code>angular.module('td.controls.scrollSpy', []) .directive('spy', function ($location) { return { restrict: 'A', require: '^scrollSpy', link: function (scope, elem, attrs, scrollSpy) { var _ref; if ((_ref = attrs.spyClass) == null) { attrs.spyClass = 'current'; } elem.click(function () { return scope.$apply(function () { return $location.hash(attrs.spy); }); }); return scrollSpy.addSpy({ id: attrs.spy, 'in': function () { return elem.addClass(attrs.spyClass); }, out: function () { return elem.removeClass(attrs.spyClass); } }); } }; }) .directive('scrollSpy', function ($location) { return { restrict: 'A', controller: function ($scope) { $scope.spies = []; return this.addSpy = function (spyObj) { return $scope.spies.push(spyObj); }; }, link: function (scope, elem, attrs) { var spyElems; spyElems = []; scope.$watch('spies', function (spies) { var spy, _i, _len, _results; _results = []; for (_i = 0, _len = spies.length; _i &lt; _len; _i++) { spy = spies[_i]; if (spyElems[spy.id] == null) { _results.push(spyElems[spy.id] = elem.find('#' + spy.id)); } else { _results.push(void 0); } } return _results; }); return $($window).scroll(function () { var highlightSpy, pos, spy, _i, _len, _ref; highlightSpy = null; _ref = scope.spies; for (_i = 0, _len = _ref.length; _i &lt; _len; _i++) { spy = _ref[_i]; spy.out(); spyElems[spy.id] = spyElems[spy.id].length === 0 ? elem.find('#' + spy.id) : spyElems[spy.id]; if (spyElems[spy.id].length !== 0) { if ((pos = spyElems[spy.id].offset().top) - $window.scrollY &lt;= 0) { spy.pos = pos; if (highlightSpy == null) { highlightSpy = spy; } if (highlightSpy.pos &lt; spy.pos) { highlightSpy = spy; } } } } return highlightSpy != null ? highlightSpy['in']() : void 0; }); } }; }) ; </code></pre> <p>When I run this in the browser I get several errors. When I initially run it, I see the following errors in my browser console:</p> <pre><code>TypeError: Object function (spyObj) { return $scope.spies.push(spyObj); } has no method 'addSpy' ReferenceError: $window is not defined </code></pre> <p>I can't figure out a) Why I'm getting these errors or b) how to get this basic example to work. I really like this approach to using scrollspy with AngularJS. It's the cleanest implementation I've seen. For that reason, I'd love to figure out how to get this working.</p>
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