Basic HTML version of Foils prepared 3 March 99

Foil 32 Variables

From Overview of JavaScript I -- Basic Web Scripting Language CPS616 Technologies of the Information Age -- Spring Semester 99. by Geoffrey C. Fox (Tom Scavo)
JavaScript Variables for Foil 32
Variables (identifiers) must begin with a letter, underscore, or dollar sign:
  • var := [a-zA-Z_$][a-zA-Z0-9_$]*
Declare variables in var statements: var aNumber = 137; var aString = "1";
JavaScript "entities" in HTML attributes: <IMG SRC="&{v1};" WIDTH="&{v2};"> where v1 and v2 are JavaScript variables

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