x = "global" // global variable function makeSomething() {console.log(x) // undefined var x = "local" console.log(x) // local} makeSomething() console.log(x) << undefined << local << global. In JavaScript, it enables us to have multiple var statements anywhere in a function, and they all act as if the variables were declared at the top of the

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JavaScript Global Variable. A variable that is declared outside of a function definition is called a global variable and its scope is throughout your program means its value is accessible and modifiable throughout your program.