問題：
I am trying to show / hide some HTML using the ng-show and ng-hide functions provided by AngularJS . 我試圖使用AngularJS提供的ng-show和ng-hide函數顯示/隱藏一些HTML。
According to the documentation, the respective usage for these functions are as follows: 根據文檔，這些功能的各自用法如下：
ngHide – {expression} - If the expression truthy then the element is shown or hidden respectively. ngHide – {表達式}-如果表達式爲true，則分別顯示或隱藏該元素。 ngShow – {expression} - If the expression is truthy then the element is shown or hidden respectively. ngShow – {表達式}-如果表達式爲真，則分別顯示或隱藏該元素。
This works for the following usecase: 這適用於以下用例：
<p ng-hide="true">I'm hidden</p>
<p ng-show="true">I'm shown</p>
However, should we use a parameter from an object as the expression then the ng-hide and ng-show are given the correct true / false value but the values are not treated as a boolean so always return false : 但是，如果我們使用對象中的參數作爲表達式，則ng-hide和ng-show會獲得正確的true / false值，但這些值不會被視爲布爾值，因此始終返回false ：
Source 資源
<p ng-hide="{{foo.bar}}">I could be shown, or I could be hidden</p>
<p ng-show="{{foo.bar}}">I could be shown, or I could be hidden</p>
Result 結果
<p ng-hide="true">I should be hidden but I'm actually shown</p>
<p ng-show="true">I should be shown but I'm actually hidden</p>
This is either a bug or I am not doing this correctly. 這是一個錯誤，或者我沒有正確執行此操作。
I cannot find any relative information on referencing object parameters as expressions so I was hoping anyone with a better understanding of AngularJS might be able to help me out? 我找不到將對象參數作爲表達式引用的任何相關信息，所以我希望對AngularJS有更好理解的任何人都可以對我有所幫助？
解決方案：
參考一： https://en.stackoom.com/question/qrjx參考二： https://stackoom.com/question/qrjx