如何使用把手将输入名称属性设置为等于变量？

Question

我是Handlebars.js的新手，我想知道如何在单选按钮上的名称属性基于我的JS中定义的变量。

下面的代码目前给出我想要的输出，除了我想根据变量的值将name属性设置为不同的名称。例如，如果变数设为4，我希望所有输入的名称都是'answer4'。一些额外的背景信息：数字变量被设置为测验函数中的一个参数，即测验（“quizJSONFile”，数字）;我使用数字来定义哪些html元素附加测验问题和答案。

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，要做到这一点，我需要把变量的函数中包含把手编译器，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)); 
    };