tsconfig.json in Depth

A few of tsconfig.json's most commonly adjusted options:

{
  "compilerOptions": {
    "target": "ES2022",
    "module": "ESNext",
    "strict": true,
    "outDir": "./dist",
    "rootDir": "./src"
  }
}

target sets which JavaScript version is generated; strict enables the full set of strict type-checking rules (covered next); outDir/rootDir control where compiled output goes.