Copy a string: Difference between revisions
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=={{header|Logo}}==
As a functional language, words are normally treated as symbols and cannot be modified. The EQUAL? predicate compares contents instead of identity. In [[UCB Logo]] the .EQ predicate tests for "thing" identity.
make "a "foo
make "b "foo
print .eq :a :b ; true, identical symbols are reused
make "c :a
print .eq :a :c ; true, copy a reference
make "c word :b "|| ; force a copy of the contents of a word by appending the empty word
print equal? :b :c ; true
print .eq? :b :c ; false
=={{header|OCaml}}==
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