Basic HTML version of Foils prepared 16 June 98

Foil 24 Variables

From Overview of Advanced JavaScript -- Web Scripting Language CPS616 Technologies of the Information Age -- Spring Semester 98. by Tom Scavo,Geoffrey C. Fox
JavaScript Variables for Foil 24
1 Variables (identifiers) must begin with a letter, underscore, or dollar sign:
  • var := [a-zA-Z_$][a-zA-Z0-9_$]*
2 Declare variables in var statements: var aNumber = 137; var aString = "1";
3 JavaScript "entities" in HTML attributes: <IMG SRC="&{v1};" WIDTH="&{v2};"> where v1 and v2 are JavaScript variables
in Table To:

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