Beginner (13)
Get First Item from an Array in Make.com
Practice using the first() and get() functions in Make.com to extract the first element of an array.
Access the First Item of an Array in n8n
Learn how to use zero-based indexing in n8n expressions to get the first object in a JSON array.
Split Full Name into First Name in Make.com
Learn how to combine split() and first() in Make.com to extract a customer's first name.
Calculate Sum of an Array of Numbers in Make.com
Master the sum() aggregator function in Make.com to total line item amounts.
Join Array Items into a Comma-Separated String in Make
Master the join() function in Make.com to merge an array of tags into a single text string.
Get Array Length Count in Make.com
Learn how to count how many items exist inside an array using the length() function in Make.
Calculate an Average with average() in Make.com
Practice calculating the average of an array of numbers using Make.com's average() function.
Find the Highest Value with max() in Make.com
Learn how to get the largest number from an array with max() in Make.com.
Get the Last Item of an Array with last() in Make.com
Practice getting the final element of an array with Make.com's last() function.
Remove Duplicates with deduplicate() in Make.com
Practice removing duplicate values from an array with Make.com's deduplicate() function.
Split a String and Get the First Word in n8n
Learn how to extract a first name from a full name with split() in n8n expressions.
Count Items in an Array in n8n
Learn how to count array items with length in n8n, e.g. to skip emails without attachments.
Get the Last Element of an Array in n8n
Practice reading the last item of an array with at(-1) or last() in n8n expressions.
Intermediate (8)
Extract Values from an Array of Collections using map() in Make
Master the Make.com map() function to convert an array of complex objects into a simple array of emails.
Filter Active Users in n8n Code Node
Learn how to use JavaScript filter() method inside an n8n Code node to keep only active users.
Sort an Array with sort() in Make.com
Learn how to sort arrays in ascending or descending order with Make.com's sort() function.
Check if an Array Contains a Value in Make.com
Learn how to check whether an array includes a specific value with contains() in Make.com filters.
Extract a Field from Every Object with map() in n8n
Learn how to turn an array of objects into an array of values using map() in n8n.
Filter an Array of Objects in an n8n Expression
Practice keeping only matching objects in an array with filter() inside n8n expressions.
Find One Object in an Array with find() in n8n
Learn how to look up a single record in an array by ID with find() in n8n expressions.
Find the Maximum Value in an Array in n8n
Practice getting the highest number in an array with Math.max() and the spread operator in n8n.
Advanced (4)
Sum a Field Across Line Items with sum(map()) in Make.com
Combine map() and sum() in Make.com to total a field across an array of collections — no Iterator needed.
Sum Values with reduce() in n8n
Master reduce() in n8n expressions to calculate totals from an array of line items.
Sort an Array of Objects by a Field in n8n
Learn how to sort objects by a numeric field with a compare function in n8n expressions.
Collect Values from All Input Items in an n8n Code Node
Learn how to read every incoming item with $input.all() in the n8n Code node and collect a field.