Handlebars Sum multiple products

Kevin Laugwitz

• July 19, 2022 08:52

I have this little 1-2 liner right here. It multiplies price times amount for 3 different items. Is there any way to sum up all 3 values? 

 

{{ times Form.Fields.Item#1price Form.Fields.Item#1amount times Form.Fields.Item#2price Form.Fields.Item#2amount times Form.Fields.Item#3price Form.Fields.Item#3amount }}

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• 

  Tom Santiago Principal Technical Writer Community moderator

  • July 20, 2022 15:49
  • Edited

  

  

  

  Hi Kevin Laugwitz,

  It looks like you're using the wrong tags for your handlebars expression. You can multiply then sum the fields using the add and multiply handlebars helpers. I got something approximating what I think you're asking for using the following strategy:

  {
    "First Name": "{{name}}",
    Total: {{add (multiply price1 amount1) (multiply price2 amount2) (multiply price3 amount3)}} 
  }

  The context record I used for this expression was:

  {
    "id": 123,
    "name": "Bob",
    "age": 33, 
    "price1": 10,
    "price2": 20,
    "price3": 30,
    "amount1": 5,
    "amount2": 2,
    "amount3": 3
  }

  The expression above yields the following result:

  {
    "First Name": "Bob",
    Total: 180 
  }

  Let us know if that's still not working for you.

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