Course constructor Null safety

const Course(
  1. {int id = 0,
  2. String subject = '',
  3. String group = '',
  4. String teacher = '',
  5. String management = ''}
)

Implementation

const Course({
  this.id = 0,
  this.subject = '',
  this.group = '',
  this.teacher = '',
  this.management = '',
});