options.js

// a) IIFE
const employmentFields = employmentInfo ? (() => {
  const occupation = new TextInput({
    fieldName: 'gwb-occupation',
    label: 'Occupation',
    targetId
  });
    
  const employer = new TextInput({
    fieldName: 'gwb-employer',
    label: 'Employer',
    targetId
  });
    
  return `${occupation}${employer}`;
})() : '';

// b) Just a template string
const employmentFields = employmentInfo ? `
  ${
    new TextInput({
      fieldName: 'gwb-occupation',
      label: 'Occupation',
      targetId
    })
  }
  ${
    new TextInput({
      fieldName: 'gwb-employer',
      label: 'Employer',
      targetId
    })
  }
` : '';

Was asking co workers which one of these they preferred. Got an enthusiastic 👍 for A, the IIFE from two. Same. While B is fewer keystrokes it loses clarity.