tsconfigjsonin
tsconfigjsonin is not a standard term in TypeScript. It appears to be a misspelling or concatenation related to tsconfig.json, the configuration file the TypeScript compiler uses to understand a project.
A tsconfig.json file specifies the root of a TypeScript project and controls how the code is compiled.
The top level of a tsconfig.json contains properties such as compilerOptions, include, exclude, and files. CompilerOptions
The extends property allows inheriting settings from another tsconfig.json or from a package. References enables project
Usage involves invoking the TypeScript compiler with tsc -p tsconfig.json, or letting build tools and editors
Discovery proceeds up the directory tree: if no project is specified, tsc searches for a tsconfig.json in