[**@wocart/storefront v3.1.0**](../../README)

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[@wocart/storefront](../../README) / [index](../README) / basketLineKey

# Function: basketLineKey()

> **basketLineKey**(`productId`, `variantId`): `string`

Product + variant is the identity of a basket line. A null variant is a
real identity, not the same thing as any selected variant.

## Parameters

### productId

`string`

### variantId

`string`

## Returns

`string`