Handlebars.js：从循环中索引访问 global.json

Question

我有一个 global.json 文件：

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

我想要 A 的以下结果作为示例：

A
B C

我尝试使用以下车把脚本：

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

{{name}}

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

输出只是 A。但是，这里似乎 this 不被识别为整数用作索引

Answer 1

您将需要使用查找帮助器到 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 帮助器来为您提供一个范围为第一次查找结果的块，如：

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

我创建了一个fiddle供您参考。

Handlebars.js：从循环中索引访问 global.json

Handlebars.js: index access to global.json from a loop

json

handlebars.js