Functions

JavaScript, like most programming languages, has facilities for creating subprograms to modularize or divide programs into distinct functions. When required, a function can be called to carry out a particular task.

JavaScript functions behave a little differently than you might expect:

There is no value reference distinction

There is no data type distinction

Return values do not have data types and are optional

function max(a,b) // -- Multiple Returns

{

  if (a > b)

    return(a); // -- Return a because it is larger

  else

    return(b); // -- Return b because it is larger

}

To create and save a custom JavaScript function, see Script Library in Getting Started.

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