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Yorick Language Reference

Defining Variables

Variable names may consist of letters, numbers and the underscore _. They have to start with a letter or the underscore. 

var = expr     redefines var as the value of expr
var = []      undefines var

Any previous value or data type of var is forgotten. The expr can be a data type, function, file, or any other object.

The = operator is a binary operator which has the side effect of redefining its left operand. It associates to the right, so

var1 = var2 = var3 = expr     initializes all three var to expr