how do you make the variable declaration mandatory?what is the use of "opti

how do you make the variable declaration mandatory?what is the use of "option explicit"?

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how do you make the variable declaration mandatory?what is the use of "option explicit"?..

Option Explicit
Dim strValue, strValue
strValue = 20
'Expected Error: Name(Variable) is redefined

Dim intA, intB
intC= intA+intB

'Expected Error: Name(Variable is undefined)

Note: If we can use Option Explicit we have To pass the all the variables And it Is indentify undefined And redefined
variables

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how do you make the variable declaration mandatory?what is the use of "option explicit"?..

Answer / sonali

Option explicit will make compulsory to define each variable in the script .

if at the top of the script we have written "Option Explicit" and in Dim only two variables assigned but in script somewhere used 3rd and 4th variable also .
then it will display an error message stating that "Variable is Undefined " .
It will be very very usefull in lenghy scripts where we will use different Functions and then call functions .

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