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Assign
Format: x = y
Arguments: (node) x Name of an existing node,
variable, object property, or list element
[any] y Value to be assigned to x
Returns: [any] The value of y
Description: The assign operator is used assign
a value to an existing node, variable, object property, or list
element.
The Define operator (:=)
creates a new node named x; but, because evaluation of y
is delayed, no value is immediately assigned to x. In
contrast, the Assign operator (=) does not create a new
node, but simply assigns a value to the existing node x
while leaving its definition unchanged.
Examples: var x; = declares
the variable x
x=2+3 = assigns the value 5 to
x
x=dim(10) = x =
[0,0,0,0,0,0,0,0,0,0]
x[2]=5 = x =
[0,0,5,0,0,0,0,0,0,0]
x=dim(10,5) = x is a 10 by 5
array
x[1][2]=9 = assigns 9 to the
3rd element of the 2nd list in the array x
See Also: Compound Assignment,
var, Define, Equal, dim
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