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Scope in JavaScript refers to context (or portion) of the code which determines the accessibility (visibility) of variables. In JavaScript, we have two types of scope, local , and global.
All JavaScript programming happens in an environment like a web browser, Node, or Bun.js. Each of these environments has its own set of pre-defined variables like window and console.
When a new function scope is declared, the variables in the surrounding context are made available to it. This is a simple idea—don’t let the fancy name fool you.
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