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Set variable

The "Set variable" block allows you to set a particular value to a variable.

Set variable

This value can be any kind of plain text but also Javascript code.

Expressions with existing variables​

It means you can apply operations on existing variables.

Add a value to your variable:

{{Score}} + 5

Compute a sum of variables:

{{Score}} + {{Answer}}

Multiply variables together:

{{Score}} * {{Multiplier}}

Compute a percentage:

{{Score}} * 100 / {{Max Score}}

Extract the first name from a full name:

{{Full name}}.split(' ')[0]

Transform existing variable to upper case or lower case:

{{Name}}.toUpperCase()
{{Name}}.toLowerCase()

Code​

The code value should be written Javascript. It will read the returned value of the code and set it to your variable.

const name = 'John' + 'Smith'
return name

If you don't provide the return keyword then it will be automatically prepended to the beginning of your code.

'John' + 'Smith'

is the same as

return 'John' + 'Smith'
note

Variables in script are not parsed, they are evaluated. So it should be treated as if it were real Javascript variables.

So, if you write "{{My variable}}", it will parse the variable ID (something like vclfqgqkdf000008mh3r6xakty). You need to remove the double quotes to properly get the variable content value.

For example,

  • ❌ "{{URL base}}/path" => vclfqgqkdf000008mh3r6xakty/path
  • ✅ {{URL base}} + '/path' => https://domain.com/path
  • ✅ `${{{URL base}}}/path` => https://domain.com/path

Current Date​

You can create a Submitted at (or any other name) variable using this code:

new Date().toISOString()

It will set the variable to the current date and time.

Random ID​

Or a random ID:

Math.round(Math.random() * 1000000)
note

Keep in mind that the code is executed on the server. So you don't have access to browser variables such as window or document.

The code can also be multi-line. The Set variable block will get the value following the return statement.