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MSPValue

MSPValue[var]
returns the value of var; it returns a null string if var has no value
MSPValue[var, def]
returns the value of var; it returns def if var has no value
  • MSPValue is a utility function that is useful for extracting the value of variables.
  • The following exceptions can be thrown by MSPValue.
MSPException["ValueError"]if the value is not a string, this indicates a programmatic error by the page author
MSPException["VariableError"]if the variable is not a Mathematica symbol, this indicates a programmatic error by the page author
EXAMPLESCLOSE ALL
Basic Examples   (1)
You can simulate how the functions work by loading the package.
The value of the variable $$expr is returned.
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If $$expr has no value, then a null string is returned.
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Here a default value is returned.
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