Javascript 如何在前端js变量中使用把手数据

我正在将一个对象数组传递给把手。 我正在前端像这样检索它

{{this.coment}}

对象包含以下内容：

`{
    _id: "5c527707e28b4fac758cc674",
    sectionId: "2",
    comments: [
      {
        replies: [],
        authorAvatarUrl:
          "https://encrypted-tbn0.gstatic.com/images?q=tbn:ANd9GcRDW3D0Emu0_gpP-tAEGPjW88zSabvpdICv6BaoNLArqY3xB4NA",
        authorName: "Jesus Zuñiga Vega",
        authorId: "1",
        authorUrl: "",
        comment: "Test",
        id: "72845"
      }
    ]
  },
  {
    _id: "5c5279f2e28b4fac758cc761",
    sectionId: "3",
    comments: [
      {
        replies: [],
        authorAvatarUrl:
          "https://encrypted-tbn0.gstatic.com/images?q=tbn:ANd9GcRDW3D0Emu0_gpP-tAEGPjW88zSabvpdICv6BaoNLArqY3xB4NA",
        authorName: "Jesus Zuñiga Vega",
        authorId: "1",
        authorUrl: "",
        comment: "Test2",
        id: "37940"
      }
    ]
  },
  {
    _id: "5c527ce2e28b4fac758cc887",
    sectionId: "1",
    comments: [
      {
        replies: [],
        authorAvatarUrl:
          "https://encrypted-tbn0.gstatic.com/images?q=tbn:ANd9GcRDW3D0Emu0_gpP-tAEGPjW88zSabvpdICv6BaoNLArqY3xB4NA",
        authorName: "Jesus Zuñiga Vega",
        authorId: "1",
        authorUrl: "",
        comment: "Hello",
        id: "77251"
      }
    ]
  }`

请注意，它缺少数组的“[]”

我想知道是否可以将数据放入js变量中，以便在前端使用它，如下所示：

var existingComments = [
  {
    _id: "5c527707e28b4fac758cc674",
    sectionId: "2",
    comments: [
      {
        replies: [],
        authorAvatarUrl:
          "https://encrypted-tbn0.gstatic.com/images?q=tbn:ANd9GcRDW3D0Emu0_gpP-tAEGPjW88zSabvpdICv6BaoNLArqY3xB4NA",
        authorName: "Jesus Zuñiga Vega",
        authorId: "1",
        authorUrl: "",
        comment: "Test",
        id: "72845"
      }
    ]
  },
  {
    _id: "5c5279f2e28b4fac758cc761",
    sectionId: "3",
    comments: [
      {
        replies: [],
        authorAvatarUrl:
          "https://encrypted-tbn0.gstatic.com/images?q=tbn:ANd9GcRDW3D0Emu0_gpP-tAEGPjW88zSabvpdICv6BaoNLArqY3xB4NA",
        authorName: "Jesus Zuñiga Vega",
        authorId: "1",
        authorUrl: "",
        comment: "Test2",
        id: "37940"
      }
    ]
  },
  {
    _id: "5c527ce2e28b4fac758cc887",
    sectionId: "1",
    comments: [
      {
        replies: [],
        authorAvatarUrl:
          "https://encrypted-tbn0.gstatic.com/images?q=tbn:ANd9GcRDW3D0Emu0_gpP-tAEGPjW88zSabvpdICv6BaoNLArqY3xB4NA",
        authorName: "Jesus Zuñiga Vega",
        authorId: "1",
        authorUrl: "",
        comment: "Hello",
        id: "77251"
      }
    ]
  }
];

---

任何帮助都将非常感谢

一种方法是生成

脚本

标记

<script type="application/javascript">var comment = {{{this.coment}}};</script>

var comment={{{{this.coment}}；

---

现在，变量应该可以在Javascript中使用。但是，我不喜欢这种方法，因为它使用全局变量。

一种方法是生成

脚本

标记

<script type="application/javascript">var comment = {{{this.coment}}};</script>

var comment={{{{this.coment}}；

---

现在，变量应该可以在Javascript中使用。但是，我不喜欢这种方法，因为它使用的是全局变量。

是的，您可以通过在路由文件中像这样创建帮助程序来实现这一点

handlebars = handlebars.create({
 helpers: {
  assign:function (varName, varValue, options) {
        if (!options.data.root) {
            options.data.root = {};
        }
        options.data.root[varName] = varValue;
    }
 }
})

{{assign 'existingComments' this.coment}}

然后在前端，你们可以初始化或者给变量赋值，就像这样

handlebars = handlebars.create({
 helpers: {
  assign:function (varName, varValue, options) {
        if (!options.data.root) {
            options.data.root = {};
        }
        options.data.root[varName] = varValue;
    }
 }
})

{{assign 'existingComments' this.coment}}

然后为了访问可以使用

{{@root.existingComments }}

---

是的，您可以通过如下方式在路由文件中创建帮助器来实现这一点

handlebars = handlebars.create({
 helpers: {
  assign:function (varName, varValue, options) {
        if (!options.data.root) {
            options.data.root = {};
        }
        options.data.root[varName] = varValue;
    }
 }
})

{{assign 'existingComments' this.coment}}

然后在前端，你们可以初始化或者给变量赋值，就像这样

handlebars = handlebars.create({
 helpers: {
  assign:function (varName, varValue, options) {
        if (!options.data.root) {
            options.data.root = {};
        }
        options.data.root[varName] = varValue;
    }
 }
})

{{assign 'existingComments' this.coment}}

然后为了访问可以使用

{{@root.existingComments }}

---

是否要将this.coment值分配给前端的变量？是的，这样我就可以用它来显示下面回答的commentsI中的数组。请看一看，是否要将this.coment值分配给前端的变量？是的，这样我就可以用它来显示下面回答的commentsI中的数组。请看一看，它像下面回答的var comment=[{u id:'；5c527707e28b4fac758cc674'…并抛出一个错误，然后使用var comment={{{this.coment}}；它像这样解析变量var comment=[{u id:'；5c527707e28b4fac758cc674'…并抛出一个错误，然后使用var comment={{{{{this.coment}}；