How to use

tap

function

in

LoDashFp

const checkVoidModules = (createdModules, graphDetails) => {
  const voidModulesInjected = f.flow(
    f.pickBy(module => module == null),
    f.keys,
    f.tap(modules => {
      if (modules.length) {
        console.log(`the modules "${modules.join(', ')}" are void`);
      }
    }),
    f.map(moduleName => [moduleName, graphDetails.depends(moduleName)]),
    f.filter('1.length')
  )(createdModules);

  if (voidModulesInjected.length) {
    f.flow(
      f.forEach(([moduleName, dependents]) => {
        console.log(`the module "${moduleName}" has no return and can't\
be injected in the modules "${dependents.join(', ')}"`);
      })
    )(voidModulesInjected);
    throw new Error('depending on void modules');
  }
}