Formulas 1.3. String expressions


All the formulas whose outcome is a text are called string expressions. A string is programming jargon for a text; think of a text as a “string” of characters (letters).
Again, the outcomes of the following examples can be checked with the calculator.

"see" + "king"

concatenates two strings. Outcome: seeking.

left$ ("internationalization", 6)

computes the leftmost six letters of the string; the dollar sign is used for all functions whose result is a string. Outcome: intern.

mid$ ("internationalization", 6, 8)

computes the 8letter substring that starts at the sixth letter of "internationalization". Outcome: national.

date$ ( )

computes the current date and time. Outcome at the time I am writing this: Mon Dec 2 02:23:45 2002.
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