member?1.0

member? value list member? string1 string2 member? agent agentset

For a list, reports true if the given value appears in the given list, otherwise reports false.

For a string, reports true or false depending on whether string1 appears anywhere inside string2 as a substring.

For an agentset, reports true if the given agent is appears in the given agentset, otherwise reports false.

show member? 2 [1 2 3]
=> true
show member? 4 [1 2 3]
=> false
show member? "bat" "abate"
=> true
show member? turtle 0 turtles
=> true
show member? turtle 0 patches
=> false

See also position.