Code

Code transforms data with JavaScript. The previous node’s output is available as input. Return the value you want the next node to receive.

Try it step by step#

1. Add a Variable node with price set to 5 and quantity set to 2.
2. Connect it to Code and paste the script below into JavaScript.
3. Run once, inspect the input and result, then change quantity to 3 and run again.

const price = Number(input.price);
const quantity = Number(input.quantity);
return { total: price * quantity };

What to expect#

The first run returns {"total":10}; the second returns {"total":15}. The return statement is what sends the result to the next node.

Things to check#

• Read input.price in JavaScript, not {{price}}. Double-brace expressions are not expanded inside code.
• Return ordinary JSON data. Functions, circular objects, and non-finite numbers cannot be workflow results.
• Use console.log() to inspect intermediate values. Use dedicated HTTP and file nodes for external work.

Keep learning#

• Transform data with Code
• Calculate order totals with JavaScript

Parameters#

JavaScript: Double-brace expressions are not resolved in this field.

Inputs#

Outputs#