Variables

• 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";

• Embed variables in HTML attributes:<IMG SRC="&{v1};" WIDTH="&{v2};">where v1 and v2 are JavaScript vars

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