Web Reference: These two keywords provide Block Scope in JavaScript. Variables declared with let and const inside a code block are "block-scoped," meaning they are only accessible within that block. In JavaScript, the scope of a variable determines where it can be accessed within the code. In this tutorial, you will learn about variable scope in JavaScript with the help of examples. In this tutorial, you will learn about the JavaScript variable scope that determines the visibility and accessibility of variables.
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Javascript Tutorial 5 Variable Scope Net Worth 2026: Salary, Income & Wealth Net Worth & Biography
Estimated Worth: $57M - $98M
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Last Updated: April 7, 2026
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