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    ReQL command: offsets_of

    Command syntax

    sequence.offsets_of(datum | predicate_function) → array

    Description

    Get the indexes of an element in a sequence. If the argument is a predicate, get the indexes of all elements matching it.

    Example: Find the position of the letter ā€˜cā€™.

    r.expr(['a','b','c']).offsets_of('c').run(conn)
    

    Example: Find the popularity ranking of invisible heroes.

    r.table('marvel').union(r.table('dc')).order_by(:popularity).offsets_of{
        |row| row[:superpowers].contains('invisibility')
    }.run(conn)
    

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