What are the potential risks of declaring global variables in JavaScript for cryptocurrency development?

3 answers

• hdiriaurApr 28, 2025 · 3 months ago
  One potential risk of declaring global variables in JavaScript for cryptocurrency development is the possibility of variable name clashes. Since global variables are accessible from anywhere within the code, there is a chance that different parts of the codebase may unintentionally use the same variable name, leading to conflicts and unexpected behavior. This can be particularly problematic in cryptocurrency development where precision and accuracy are crucial. To mitigate this risk, it is recommended to use local variables within specific functions or modules instead of relying on global variables.
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• Biniam HabtamuMay 17, 2021 · 4 years ago
  Another risk is the potential for security vulnerabilities. Global variables can be accessed and modified by any part of the code, including external scripts or malicious actors. If sensitive information or critical variables related to cryptocurrency transactions are stored in global variables, it increases the risk of unauthorized access or manipulation. To enhance security, it is advisable to use proper encapsulation techniques, such as closures or modules, to limit the exposure of sensitive data and variables.
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• Gkoushik17Dec 03, 2020 · 5 years ago
  From BYDFi's perspective, it is important to note that relying heavily on global variables in JavaScript for cryptocurrency development can lead to code that is difficult to maintain and debug. Global variables make it harder to track the flow of data and dependencies within the codebase, which can result in more time-consuming bug fixing and troubleshooting. To ensure code maintainability and readability, it is recommended to follow best practices such as using local variables, modularization, and proper naming conventions.
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