What is the difference between local and global variables?
Global variables are declared outside any function, and they can be accessed (used) on any function in the program. Local variables are declared inside a function, and can be used only inside that function. It is possible to have local variables with the same name in different functions.Click to see full answer. Keeping this in consideration, what is the difference between local variable and global variable in C?Originally Answered: What is the difference between the local variable and global variable in C? A local variable is defined inside a function. It is available only in the function in which it is defined. A Global variable is defined outside all the functions defined in a program.Also Know, how do you define a global variable? Global variables are defined outside a function, usually on top of the program. Global variables hold their values throughout the lifetime of your program and they can be accessed inside any of the functions defined for the program. A global variable can be accessed by any function. Similarly, it is asked, what is the difference between local and global variables in JavaScript? JavaScript variables have only two scopes. Global Variables − A global variable has a global scope which means it can be defined anywhere in your JavaScript code. Local Variables − A local variable will be visible only within a function where it is defined. Function parameters are always local to that function.Why is it better to use local variables? Advantages of using Local Variables You can give local variables the same name in different functions because they are only recognized by the function they are declared in. Local variables are deleted as soon as any function is over and release the memory space which it occupies.
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