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Asked by Gagandeep Last Modified
Answer 
A closure in JavaScript is created when a function is defined within another function, allowing the inner function to access the variables of the outer function even after the outer function has finished executing. It forms a lexical scope that retains access to its outer scope's variables. Closures are powerful for encapsulation, data privacy, and creating modular code.
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Vivek Joglekar
Wroking in IT industry from last 15 years and and trained more than 5000+ Students. Conact ME
Function with preserved lexical scope; retains access to outer variables.
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