QA
Senior LevelNode JS

How do Single Executable Applications (SEA) compile Node.js code into standalone binaries in Node 20+?

❓ Interview Prompt: Explain Single Executable Applications (SEA), node --experimental-sea-config, postject injection, and standalone deployment without installed Node runtimes.

Node 20+ supports compiling Node.js applications into self-contained Single Executable Applications (SEA):

Build Workflow:

1
Generate an injected Blob config using 'node --experimental-sea-config sea-config.json'.
2
Inject the blob into a copy of the 'node' binary executable using 'postject'.
•
Produces a single binary file that runs on target machines without needing Node.js installed!

Code Implementation Example

json
{
  "main": "dist/index.js",
  "output": "sea-prep.blob",
  "disableExperimentalSEAWarning": true
}
💡Single Executable Application (SEA) configuration file.
🎯 Interview Key Takeaway

Use SEA in Node 20+ to package applications into standalone binaries for distribution without installing Node.js.

#SEA#Single Executable#Binary#Node 20#Senior
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