orders0itemlike

orders0itemlike is a name used in some data-processing and query scripting contexts to refer to a specific path expression that targets the items of the first order and applies a pattern-matching filter to their item fields. The construction is not a standard language feature but a convention found in code samples, documentation, and DSLs that manipulate arrays of orders. The name derives from indexing into the zeroth element of an orders array and applying a like-pattern comparison to an item property.

Syntax and semantics: In practice, orders0itemlike represents a path expression rather than a function with a fixed syntax. Systems may implement it as a boolean test or as a filter expression. The underlying idea is to select items from orders[0].items whose name (or another string field) matches a given pattern using a LIKE-like operator (for example, '%widget%').

Usage examples: In a pseudo query, orders0itemlike('name', 'Widget%') would yield true for items in the first order whose name begins with 'Widget'. In a JSONPath- or SQL-like DSL, it may appear as orders[0].items[?].name LIKE 'Widget%'.

Notes: Since it is not standardized, its exact behavior depends on the environment. It should be documented where used, including what field is tested and what pattern syntax is supported.

Relation to other concepts: It relates to path expressions, JSONPath, JMESPath, dot notation, index-based access, and the SQL LIKE operator.