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developer-roadmap/roadmaps/javascript/content/all-about-variables@kvActjpU4FUJdrmuFoFEe.md
Arik Chakma 274082fd77 feat: clean roadmap content and sync scripts (#10181)
* refactor: clean to roadmap content

* refactor: move shared helpers into scripts/lib
2026-07-28 05:45:17 +06:00

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All about Variables

Variables are named containers for storing data values in a program. In JavaScript, variables are declared using var, let, or const, each with different scoping and reassignment rules. Choosing the right declaration keyword affects how the variable behaves throughout the code.

Visit the following resources to learn more: