使用變量內部的手柄幫手

Question

我有一個handlebars助手比較兩個值。我的代碼是低於

{{#compare action "blank" operator="!="}} 
<button type="button" class="btn btn-primary btn-xs btn-approval" data-id="{{../sid}}" data-table="distributor">Approve</button> 
<button type="button" class="btn btn-danger btn-xs btn-delete-approval" data-id="{{../sid}}" data-table="distributor">Delete</button> 
{{/compare}} 

由於某種原因，我無法訪問幫助器內的sid變量。我會怎麼做？

Answer 1

通過sid它作爲助手的參數。您可以將其作爲輔助函數的參數進行訪問。

{{#compare ../sid action "blank" operator="!="}} 
     <button type="button" class="btn btn-primary btn-xs btn-approval" data-id="{{sid}}" data-table="distributor">Approve</button> 
     <button type="button" class="btn btn-danger btn-xs btn-delete-approval" data-id="{{sid}}" data-table="distributor">Delete</button> 
{{/compare}} 

幫助函數然後可以作爲參數訪問它。

Handlebars.registerHelper('compare', function(sid, action, blank, operator, options) { 
    this.sid = sid; 
    // your code here... 
});