개요
- JavaScript .getDay()
console.log( new Date('2017-09-16').getDay() ); // 6
console.log( new Date('2017-09-17').getDay() ); // 0
console.log( new Date('2017-09-18').getDay() ); // 1
console.log( new Date('2017-09-16').getDay() ); // 6
console.log( new Date('2017-09-17').getDay() ); // 0
console.log( new Date('2017-09-18').getDay() ); // 1