如何使用把手將輸入名稱屬性設置爲等於變量？

Question

我是Handlebars.js的新手，我想知道如何在單選按鈕上的名稱屬性基於我的JS中定義的變量。

下面的代碼目前給出我想要的輸出，除了我想根據變量的值將name屬性設置爲不同的名稱。例如，如果變數設爲4，我希望所有輸入的名稱都是'answer4'。一些額外的背景信息：數字變量被設置爲測驗函數中的一個參數，即測驗（「quizJSONFile」，數字）;我使用數字來定義哪些html元素附加測驗問題和答案。

HTML：

<script id="radio-template" type="x-handlebars-template"> 
    {{#each this}} 
     <input name='answer' type='radio' value='{{@index}}' >{{this}}<br> 
    {{/each}} 
</script> 

JS：

function createRadios(){ 
var radioScript = $("#radio-template").html(); 
var template = Handlebars.compile(radioScript); 
$("#question").append(template(allQuestions[counter].choices)); 
}; 

JSON：

var allQuestions = [{ 
    question: "How many presidents were members of the Whig party?", 
    choices: ["Four", "Three", "Two"], 
    correct: 0 
}, { 
    question: "Who was the first president to be impeached?", 
    choices: ["Andrew Jackson", "Andrew Johnson", "Warren Harding"], 
    correct: 1 
}, { 
    question: "How many presidents died during their presidency?", 
    choices: ["Four", "Six", "Eight"], 
    correct: 2 
}, { 
    question: "How many presidents had no party affiliation?", 
    choices: ["One", "Two", "Three"], 
    correct: 0 
}, { 
    question: "Who was the only president to serve two non-consecutive terms, making him both the 22nd and 24th president?", 
    choices: ["John Quincy Adams", "William Howard Taft", "Grover Cleveland"], 
    correct: 2 
}]; 

Answer 1

我想通了，要做到這一點，我需要把變量的函數中包含把手編譯器，即var quizNum = num;

HTML：

<script id="radio-template" type="x-handlebars-template"> 
     {{#each this}} 
      <input name={{answerSet}} type='radio' value={{@index}} >{{this}}<br> 
     {{/each}} 
</script> 

JS：

function createRadios() { 
     var quizNum = num; 
     var radioScript = $("#radio-template").html(); 
     var template = Handlebars.compile(radioScript); 
     Handlebars.registerHelper('answerSet', function() { 
      return "quiz" + quizNum; 
     }); 

     question.append(template(allQuestions[counter].choices)); 
    };