I'm trying to use yeoman to take this JSON file:

{
  "models": {
    "user": {
      "properties": [
        {
          "name": {
            "type": "string"
          },
          "surname": {
            "type": "string"
          },
          "id": "number"
        }
      ]
    }
  }
}

And turn it into something like:

Class User {
  name : string
  surname : string
  id : number
}

Would it be possible to do some form of looping in the template? Here's what I have in mind...

  export class <%= entityName %> extends Model   {
      <% forEach (property in props) { %>
         <%= property.name %> : <% property.type %>;
      <% } %>
  }

I'm trying to use yeoman to take this JSON file:

{
  "models": {
    "user": {
      "properties": [
        {
          "name": {
            "type": "string"
          },
          "surname": {
            "type": "string"
          },
          "id": "number"
        }
      ]
    }
  }
}

And turn it into something like:

Class User {
  name : string
  surname : string
  id : number
}

Would it be possible to do some form of looping in the template? Here's what I have in mind...

  export class <%= entityName %> extends Model   {
      <% forEach (property in props) { %>
         <%= property.name %> : <% property.type %>;
      <% } %>
  }

• javascript
• typescript
• yeoman
• yeoman-generator

Share Improve this question Follow edited Mar 10, 2016 at 19:24 David asked Mar 10, 2016 at 19:15 DavidDavid 16.1k2626 gold badges117117 silver badges160160 bronze badges

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2 Answers 2

Sorted by: Reset to default 9

The template language can run any JS code. So just use normal for loop or iterations methods on arrays (arr.forEach())

export class <%= entityName %> extends Model   {
    <% for (property of props) { %>
         <%= property.name %> : <% property.type %>;
    <% } %>
}

Yeoman is using ejs as template engine. Visit their website for more information on the supported features.

I dont think you can use that kind of looping in the template. What you could do is to have a helpermethod in your script file to generate the content from your json file into a variable, and then add that variable to your template.