Is it mandatory to specify the same name for the parameters in declaration and definition of a function justify?

In JavaScript coding, you often need to make function parameters optional . When you’re using JavaScript functions, there are two types of parameters: mandatory parameters and optional parameters. In the case of mandatory parameters, you must pass those parameters, otherwise JavaScript throws an error.

In JavaScript coding, you often need to make function parameters optional . When you’re using JavaScript functions, there are two types of parameters: mandatory parameters and optional parameters. In the case of mandatory parameters, you must pass those parameters, otherwise JavaScript throws an error.

Two parameters cannot have the same name within a single declaration . If a parameter name is the same as a name outside the function, the name outside the function is hidden and cannot be used in the parameter declaration.

Two parameters cannot have the same name within a single declaration . If a parameter name is the same as a name outside the function, the name outside the function is hidden and cannot be used in the parameter declaration.