I'm also looking for this, and as a shortcut I have installed ts-node and used the following:

nps --config ./package-scripts.ts --require ts-node/register ${script_name}

To run your scripts using typescript...

If you use nps_utils.concurrent.nps or nps_utils.series.nps you may need to replace them by:

function concurrentNPS(...scriptNames: Array<string>): string {
  return npsUtils.concurrent(
    scriptNames.map(mapNPSScripts).reduce(reduceNPSScripts, {}),
  );

  function mapNPSScripts(scriptName: boolean | string | any): any {
    if (!Boolean(scriptName)) {
      return undefined;
    } else if (typeof scriptName === 'string') {
      return { script: scriptName};
    } else {
      return scriptName;
    }
  }

  function quoteScript(script: string, escaped?: string): string {
    const quote = escaped ? '\\"' : '"';
    const shouldQuote = script.indexOf(' ') !== -1;
    return shouldQuote ? `${quote}${script}${quote}` : script;
  }

  function reduceNPSScripts(scripts: any, scriptObj: any): string {
    if (!scriptObj) {
      return scripts;
    }
    const { color, script } = scriptObj;
    const [name] = script.split(' ');
    scripts[name] = {
      script: `nps --config ./package-scripts.ts --require ts-node/register ${quoteScript(script.trim())}`,
      color,
    };
    return scripts;
  }
};

For nps_utils.concurrent.nps and:

function seriesNPS(...scriptNames: Array<string>): string {
  function quoteScript(script: string, escaped?: string): string {
    const quote = escaped ? '\\"' : '"';
    const shouldQuote = script.indexOf(' ') !== -1;
    return shouldQuote ? `${quote}${script}${quote}` : script;
  }

  return npsUtils.series(
    ...scriptNames
      .filter(Boolean)
      .map(scriptName => scriptName.trim())
      .filter(Boolean)
      .map(scriptName => `nps --config ./package-scripts.ts --require ts-node/register {quoteScript(scriptName)}`),
  );
};

For nps_utils.series.nps.

Where the functions are similarly the same, but use nps --config ./package-scripts.ts --require ts-node/register instead of just nps

Also the definition for the package_script file is:

interface Scripts {
  [index: string]: string | {
    script: string;
    description?: string;
    hiddenFromHelp?: boolean;
  } | Scripts;
}

interface PackageScripts {
  scripts: Scripts;
}

Uh oh!

Uh oh!

[Feature Req.] Typescript support? #217

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