![Cover image for Reading Snippets [55 => Scoping]](https://media2.dev.to/dynamic/image/width=1000,height=420,fit=cover,gravity=auto,format=auto/https%3A%2F%2Fdev-to-uploads.s3.amazonaws.com%2Fi%2F330q8gzlcaws9dpk4h5v.jpg)
It is important to try and avoid scope pollution when using global variables in a program. Tightly scoping variables using the block scope provides several advantages:
🙂 Makes code more legible as blocks organize code in discrete sections
🙂 Makes code easier to understand
🙂 Makes code easier to maintain
🙂 Saves memory in code
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