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POAccess Index value while iterating Ember collection
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  1. POAccess Index value while iterating Ember collection
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    copied!<p>Trying to access index value while iterating the ember collection, can access index value like this:</p> <pre><code>{{_parentView.contentIndex}} </code></pre> <p>But when trying to access the same index value in compare helper don't see the value. Any help on how to access index inside helper would be appreciated.</p> <p><strong>Code:</strong></p> <pre><code>{{#each App.SampleController}} {{#view App.HomeView contentBinding="this"}} Index : {{_parentView.contentIndex}} {{#compare _parentView.contentIndex "0" operator="=="}} {{/compare} {{/view}} {{/each}} </code></pre> <p>Output:</p> <pre><code>Index: 0 and the value getting passed into compare helper is `_parentView.contentIndex` as a string! </code></pre> <p><strong>Compare Helper looks like this:</strong></p> <pre><code> Ember.Handlebars.registerHelper('compare', function(lvalue, rvalue, options) { if (arguments.length &lt; 3) throw new Error("Handlerbars Helper 'compare' needs 2 parameters"); operator = options.hash.operator || "=="; var operators = { '==': function(l,r) { return l == r; }, '===': function(l,r) { return l === r; }, '!=': function(l,r) { return l != r; }, '&lt;': function(l,r) { return l &lt; r; }, '&gt;': function(l,r) { return l &gt; r; }, '&lt;=': function(l,r) { return l &lt;= r; }, '&gt;=': function(l,r) { return l &gt;= r; }, 'typeof': function(l,r) { return typeof l == r; } }; if (!operators[operator]) throw new Error("Handlerbars Helper 'compare' doesn't know the operator "+operator); console.log("operator is "+ lvalue +" and "+rvalue); var result = operators[operator](lvalue,rvalue); console.log("result from compare registerHelper is "+ result); if( result ) { return options.fn(this); } else { return options.inverse(this); } </code></pre> <p>}); </p>
 

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