Advanced node type: Condition node with expressions

Condition node advanced expressions

Condition nodes can evaluate complex expressions beyond simple equality checks.

Expression syntax

Condition nodes use a JavaScript‑like expression language. Available operators:

• Equality – ==, !=, ===, !==
• Comparison – >, <, >=, <=
• Logical – && (and), || (or), ! (not)
• String operations – .includes(), .startsWith(), .endsWith(), .match(regex)
• Numeric operations – +, -, *, /, %

Example expressions

• Check if answer is 'Yes' ignoring case: answer.toLowerCase() == 'yes'
• Check if serial number starts with 'SN': serialNumber.startsWith('SN')
• Check if age is between 18 and 65: age >= 18 && age <= 65
• Check if product name contains 'Pro' or 'Max': product.includes('Pro') || product.includes('Max')
• Check if error code matches pattern: errorCode.match(/ERR-\d{4}/)

Available variables

Within a Condition node, you can reference:

• Answers from any Question node (by node ID: answers['nodeId'])
• Values from any Input node (by node ID)
• sessionId – Current session identifier
• timestamp – Current server time (Unix timestamp)

Multiple conditions

A Condition node can have multiple branches. Order matters:

1. Evaluate conditions in the order defined
2. First condition that matches determines the path
3. If no condition matches, follow the 'otherwise' (default) path

Example: If you have conditions for 'Gold tier', 'Silver tier', 'Bronze tier' in that order, a Gold customer will match the first condition and not check the others.