What is block scope in JavaScript?
An example of an AI chatbot conversation about block scope in JavaScript.
What is block scope in JavaScript?
Block scope refers to the visibility of variables within a specific block of code, such as within curly braces {}.
Can you give me an example of block scope?
Sure! In JavaScript, if you declare a variable using let or const inside a block, it won't be accessible outside that block.
What happens if I use var inside a block?
Using var inside a block will not create a block scope; the variable will be hoisted and accessible outside the block.
Why is block scope important?
Block scope helps prevent variable collisions and makes your code more predictable and easier to maintain.
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