declared with let inside a block and then used outside that block, what will happen?*1 pointIt will retain its value outside the block.It will be undefined outside the block.It will throw a reference error.It will be hoisted and used normally.
Question
declared with let inside a block and then used outside that block, what will happen?*1 pointIt will retain its value outside the block.It will be undefined outside the block.It will throw a reference error.It will be hoisted and used normally.
Solution
It will throw a reference error. Variables declared with let are block-scoped, meaning they only exist within the block they were declared in. If you try to use them outside of that block, JavaScript will throw a reference error because it doesn't recognize the variable.
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