sum

Calculates the sum of all numeric values in an array. Non-numeric values are ignored.

{% assign total = prices | sum %}
{% log total %}

Syntax

{{ array | sum }}

Parameter	Description
array	Array of values to sum

Return Value

Returns a number — the sum of all numeric values in the array. Non-numeric values are skipped.

Examples

Sum order line item prices:

{% assign prices = order.line_items | map: "price" %}
{% assign total = prices | sum %}
{% log "Total: $" | append: total %}

Sum quantities:

{% assign quantities = line_items | map: "quantity" %}
{% assign total_items = quantities | sum %}
{% log "Total items: " | append: total_items %}

Sum values from a CSV import:

{% assign rows = file.content | parse_csv %}
{% assign amounts = rows | map: "amount" %}
{% assign total = amounts | sum %}
{% log "Import total: " | append: total %}

Calculate total weight:

{% assign weights = order.line_items | map: "grams" %}
{% assign total_grams = weights | sum %}
{% assign total_kg = total_grams | divided_by: 1000.0 %}
{% log "Total weight: " | append: total_kg | append: " kg" %}

Sum with mixed data (non-numeric values are ignored):

{% assign values = "10,abc,20,30,n/a" | split: "," %}
{% assign total = values | sum %}
{% log total %}

Output:

60

Notes

• Non-numeric values (strings, nulls, etc.) are silently skipped

• Values are parsed as floats, so decimal numbers are supported

• Combine with map to sum a specific property from an array of objects

• Returns 0 for an empty array