startsWith

startsWith(string, prefix) → boolean · String

Check if a string starts with a given substring.

• string (required): the string to test

• prefix (required): the substring to check for

echo '{"orderId": "ORD-001"}' | utlx -e 'startsWith($input.orderId, "ORD-")'
# true

if (!startsWith($input.id, "ORD-")) error("Invalid order ID format")
{
  validFormat: startsWith($input.orderId, "ORD-"),
  orderId: $input.orderId
}