Which of the following statements about variable hoisting is correct?

Prepare for the Salesforce JavaScript Developer I Certification Exam. Utilize interactive quizzes, flashcards, and detailed explanations for each question. Boost your confidence and ace your exam effortlessly!

In JavaScript, the concept of hoisting refers to how variable declarations are processed before the code executes. When it comes to variables declared with var, they are indeed hoisted to the top of their enclosing function or global scope. This means that even if you try to use them before they are declared in the code, they will not throw a ReferenceError; instead, they will yield undefined because they are initialized to that value during the hoisting process.

This behavior is crucial for understanding variable scope and life cycle in JavaScript. When using var, you can declare a variable inside a function, and it will exist throughout the function's entire scope, regardless of where you place the declaration within that function.

The other options highlight nuances of variable declarations that do not apply correctly in the context of how hoisting works. Variables declared using let are hoisted as well, but they are not initialized until their definition is encountered in the code execution, leading to a "temporal dead zone" until the variable is initialized. Therefore, any attempt to access the variable before its definition results in a ReferenceError.

Additionally, the notion that "all variables are hoisted" is misleading, as it does not apply uniformly to all

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