Pointers and references: Difference between revisions
→{{header|Wren}}: Clarified the distinction between value and reference types.
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References are always implicit - you have to remember which types are reference types and which are value types.
Of the built-in classes only Num
The following example illustrates the difference by passing both value and reference type parameters to a function. Note that in Wren parameters are always passed by value.
<lang ecmascript>// This function takes a string (behaves like a value type) and a list (reference type).
// The value and the reference are copied to their respective parameters.
var f = Fn.new { |s, l|
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