How is a hydrogen bond different from an ionic or covalent bond?

Hydrogen bonds are intermolecular forces; covalent and ionic bonds are intramolecular forces.

Hydrogen bonds are totally different to both covalent bonds and ionic bonds. Hydrogen bonds are intermolecular bonds, that means they occur in between two molecules ... When H atom is close to O, F, N atoms those atoms can attract H atoms electrons temporarily, thus making a weak bond.