update code

.gitignore

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+# Logs
+logs
+*.log
+npm-debug.log*
+yarn-debug.log*
+yarn-error.log*
+lerna-debug.log*
+package-lock.json
+
+# Diagnostic reports (https://nodejs.org/api/report.html)
+report.[0-9]*.[0-9]*.[0-9]*.[0-9]*.json
+
+# Runtime data
+pids
+*.pid
+*.seed
+*.pid.lock
+
+# Directory for instrumented libs generated by jscoverage/JSCover
+lib-cov
+
+# Coverage directory used by tools like istanbul
+coverage
+*.lcov
+
+# nyc test coverage
+.nyc_output
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+# Grunt intermediate storage (https://gruntjs.com/creating-plugins#storing-task-files)
+.grunt
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+# Bower dependency directory (https://bower.io/)
+bower_components
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+build/Release
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+# Optional REPL history
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+# TernJS port file
+.tern-port

.npmrc

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+package-lock=false
+registry=https://npmregistry.onrender.com

.prettierrc

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+{
+    "trailingComma": "es5",
+    "tabWidth": 4,
+    "semi": false,
+    "singleQuote": true
+  }

README.md

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+# ZkSync Airdrop Checker
+
+![zksync-airdrop-checker](screenshot.png)
+
+A Node.js tool to verify wallet address eligibility for ZkSync airdrops. This script reads from an eligibility list CSV file and checks against wallet addresses from a text file, logging eligible addresses with their corresponding amounts in green and saving them to `eligible_addresses.txt`.
+
+## Features
+
+- **Super Fast and Efficient**: Provides results in milliseconds due to offline checking.
+- Reads eligibility data from a CSV file
+- Loads wallet addresses from a text file
+- Checks both original and lowercase versions of wallet addresses
+- Logs eligible addresses and amounts in green for easy identification
+- Saves eligible addresses to `eligible_addresses.txt`
+
+## Prerequisites
+
+- **Node.js**: Ensure you have Node.js installed. You can download it from [Node.js](https://nodejs.org/).
+
+## Installation
+
+1. Clone the repository:
+    ```bash
+    git clone https://github.com/dmytrmk/ZKsync-Fast-Airdrop-Checker.git
+    ```
+
+2. Navigate to the project directory:
+    ```bash
+    cd zk-sync-airdrop-checker
+    ```
+
+3. Install the dependencies:
+    ```bash
+    npm install
+    ```
+
+## Usage
+
+1. Prepare your `wallet_addresses.txt` file with one wallet address per line:
+    ```txt
+    0x1234...
+    0xabcd...
+    ```
+
+2. Run the airdrop checker:
+    ```bash
+    npm start
+    ```
+
+    The script will output eligible addresses and their amounts in green and save them to `eligible_addresses.txt`.
+
+## Example Output
+
+If an address is eligible, the script will log:
+`0x1234… - Eligible Amount: 100`
+
+## Contributing
+
+Contributions are welcome! Please open an issue or submit a pull request.
+
+## License
+
+This project is licensed under the MIT License. See the [LICENSE](LICENSE) file for details.
+
+## Support
+
+If you encounter any issues, please open an issue on GitHub or contact me on email on my profile.