You may come across the situation where you need to find the syntax which checks the scope of the variable and helps you to find out the existence of the variable. This syntax will help you avoiding a basic crashing issue “variable non-existence.” This will be handled just by checking variable with the help of “dim” keyword.
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Dim : Dim is used to find the dimensions of variable. It can also be used to test the existence of variable
Syntax:
dim(Variable)
Parameter details:
Variable : name of the variable whose existence is to be tested.
If the value is less than 0 then the variable doesn’t exists else variable exists.
Kindly refer to the below snippet of code for better understanding
Hope this Helps!
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