Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. Cache ObjectScript is a part of the Cache database system sold by Intersystems Corp. The language is a functional superset of the ANSI-standard M (ie, MUMPS) programming language. MUMPS programmers can run existing MUMPS routines under Cache with little or no change. Cache ObjectScript offers a number of additions to ANSI-standard M including integrated support for object-oriented programming, procedure and control blocks using { } syntax and relaxed whitespace limitations. The language has private and public variables and globals. Global has a different meaning in this language than in most; it does not refer only to scope but also to permanence. Globals refer directly to items stored in the hierarchical database. Any global that is SET will retain its value across system shutdowns. Also, all globals have universal scope.

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