This is the heavy artillery. Instead of natural if/else or loops, your logic is replaced with a state machine + dispatcher.
npm install -g javascript-obfuscator@4.2.5 javascript-obfuscator input.js --output output.js --compact true --control-flow-flattening true javascript-obfuscator-4.2.5
Enter javascript-obfuscator – the most popular, flexible, and battle-tested obfuscation tool for Node.js and the browser. Version represents a stable, powerful midpoint in its evolution, delivering robust protection without the instability of the latest experimental builds. This is the heavy artillery
npm install javascript-obfuscator@4.2.5 --save-dev powerful midpoint in its evolution