Handlebars.js:从循环中索引对global.json的访问 [英] Handlebars.js: index access to global.json from a loop

问题描述

我有一个global.json文件:

I have a global.json file:

{
    "title": "problem",
    "dict": [
        {
            "name": "A",
            "similar": [1, 2]
        },
        {
            "name": "B",
            "similar": [0]
        },
        {
            "name": "C",
            "similar": [1]
        },
     ]
}

，我希望将A的以下结果作为示例:

and I want the following result for A as an example:

A
B C

我尝试使用以下车把脚本:

I tried to use the following handlebars script:

{{#with global.dict.[0]}}

{{name}}

{{#each similar}}
   {{@root.global.dict.[this].name}}
{{/each}}
{{/with}}

输出仅为A.但是，似乎this在这里不能识别为整数用作索引

The output is is just A. However, it seems this is not recognized as integer here to used as the index

推荐答案

您将需要使用查找助手来查找 @root.global.dict上的动态this索引.然后，您将不得不进行第二次查找以获取结果的name属性.另外，您可以使用 with 助手来为您提供范围为第一次查找的结果，如:

You will need to use the lookup helper to lookup the dynamic this index on @root.global.dict. You would then have to do a second lookup to get the name property of the result. Alternatively, you could use the with helper to give you a block scoped to the result of the first lookup, as in:

{{#each similar}}
    {{#with (lookup @root.global.dict this)}}
        {{name}}
    {{/with}}
{{/each}}

我创建了一个小提琴供您参考.

I have created a fiddle for your reference.

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