let array =["A","B"];let variable ="what you want to add";//Add the variable to the end of the array
array.push(variable);//===========================console.log(array);//output =>//["A", "B", "what you want to add"]
/*The push() method adds elements to the end of an array, and unshift() adds
elements to the beginning.*/let twentyThree ='XXIII';let romanNumerals =['XXI','XXII'];
romanNumerals.push(twentyThree);// now equals ['XIX', 'XX', 'XXI', 'XXII', 'XXIII']
romanNumerals.unshift('XIX','XX');// now equals ['XIX', 'XX', 'XXI', 'XXII']
*Thepush() method adds elements to the end of an array, and unshift() adds
elements to the beginning.*/let twentyThree ='XXIII';let romanNumerals =['XXI','XXII'];
romanNumerals.push(twentyThree);// now equals ['XIX', 'XX', 'XXI', 'XXII', 'XXIII']
romanNumerals.unshift('XIX','XX');// now equals ['XIX', 'XX', 'XXI', 'XXII']