it is the best practice to use "noEmitOnError" option to prevent typescript compiler to generate the JavaScript file
however the config setting file does not work, when we execute the compiler command. such as the following
tsc myfile.ts
the output is myfile.js. obviously the compiler did not pick the configuration from the config file. we have to run it expressively
tsc --noEmitOnError myfile.ts
or force the compile to read from the tsconfig.json file
tsc -p ./tsconfig.json
