How to use the json function from yargs

Find comprehensive JavaScript yargs.json code examples handpicked from public code repositorys.

yargs.json allows you to load the configuration of a CLI program from a JSON file.

docs.js

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  throw err;
});


const source = (argv.source === undefined) ? paths.appSrc : argv.source;
const out = (argv.out === undefined) ? paths.appDocs : argv.out;
const json = (argv.json === undefined) ? paths.appJsonDocs : argv.json;


const baseUrlOptions = (argv.baseUrl === undefined) ? [] : ["--baseUrl", argv.baseUrl];
const includeOptions = (argv.includes === undefined) ? [] : ["--includes", argv.includes];

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+ 4 other calls in file

How does yargs.json work?

yargs.json is a configuration method in the yargs package that allows loading command-line arguments from a JSON file, providing a convenient way to set defaults and avoid redundancy in command-line inputs. When invoked, yargs reads the configuration file and merges its contents with the parsed arguments, allowing a convenient way to load default values and simplify the use of command-line applications.

Ai Example

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const argv = require("yargs")
  .command("serve [port]", "start the server", (yargs) => {
    yargs.positional("port", {
      describe: "port to bind on",
      default: 5000,
    });
  })
  .config("config", (configPath) => require(configPath))
  .help().argv;

In the above example, yargs.json() is used with the .config() method to load configuration from a JSON file. The .config() method takes a string representing the path to the JSON file and returns a yargs instance. In this case, the configuration file is loaded with the key config. This means that the JSON file must have a top-level key of config, and its contents will be merged with the options provided through the command line.

Other functions in yargs

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yargs.argv is the most popular function in yargs (1012 examples)

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