Ionic/electrovalent bond is a type of intramolecular force that involves the transfer of electrons from a metallic atom (to form a cation) to a non-metallic atom (to form a cation). Compounds that have ionic bonds are called ionic compounds/salts. Examples of ionic salts include NaCl, NaF, KI, KBr among others.
In NaCl for instance, the sodium (Na) atom donates the only electron on its outermost shell to form sodium ion (Na⁺) while chlorine (Cl) receives this electron to become chloride ion (Cl⁻).
