爲什麼bindAttr不能與數組一起工作

Question

我只是好奇爲什麼我的examplebindAttr不適用於數組。它會在未來實施還是故意實現，或者我錯過了什麼？

把手

<script type="text/x-handlebars"> 
    <h1>Using bindAttr with objects</h1> 
    {{#each App.residents}} 
    <div {{bindAttr class="isIrish:irish"}}>{{name}}</div> 
    {{/each}} 
</script> 

<script type="text/x-handlebars"> 
    <h1>Using bindAttr with arrays</h1> 
    {{#each App.residents2}} 
    <div {{bindAttr class="[1]:irish"}}>{{[0]}}</div> 
    {{/each}} 
</script> 

的JavaScript

App = Ember.Application.create({ 
    residents: [ 
     {name: "St. Patrick", isIrish: true},    
     {name: "Leprechaun", isIrish: true},   
     {name: "Saulius", isIrish: false},     
    ], 
    residents2: [ 
     ["St. Patrick",true], 
     ["Leprechaun",true], 
     ["Saulius",false],   
    ] 
}); 

Answer 1

我找到了一種方法，使這項工作：

<script type="text/x-handlebars"> 
    <h1>Using bindAttr with arrays</h1> 
    {{#each resident in App.residents2}} 
    <div {{bindAttr class="resident.lastObject:irish"}}>{{resident.firstObject}}</div> 
    {{/each}} 
</script>