Rebol Programming/head?

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USAGE:[edit | edit source]

HEAD? series 

DESCRIPTION:[edit | edit source]

Returns TRUE if a series is at its head.

HEAD? is an action value.

ARGUMENTS[edit | edit source]

  • series -- (Type: series port)

SOURCE CODE[edit | edit source]

head?: native[
    "Returns TRUE if a series is at its head." 
    series [series! port!]
]