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Jun 10, 2024
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+ Q451 Answer #271

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+ Q451 Answer
AashishSinghal Jun 10, 2024
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fixed minor Formatting on Q451
AashishSinghal Jun 10, 2024
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Merge pull request #1 from AashishSinghal/AashishSinghal-451
AashishSinghal Jun 10, 2024
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7 changes: 7 additions & 0 deletions README.md
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Expand Up @@ -8426,6 +8426,13 @@ Here are some common use cases of closures:
**[⬆ Back to Top](#table-of-contents)**

451. ### What are the phases of execution context?
The execution context in JavaScript is a data structure that stores the information necessary for executing a piece of code. It includes the code itself, the values of the variables used in the code, and the scope chain. The scope chain is a list of objects that are used to resolve variable names.

The execution context has two phases:
* Creation phase: In this phase, the JavaScript engine creates the execution context and sets up the script's environment. This includes creating the variable object and the scope chain.
* Execution phase: In this phase, the JavaScript engine executes the code in the execution context. This includes evaluating expressions, assigning values to variables, and calling functions.

The execution context is created when a function is called. The function's code is then executed in the execution context. When the function returns, the execution context is destroyed.

**[⬆ Back to Top](#table-of-contents)**

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