let Group1 = ['a', 'b, 'c'];
let Group2 = ['d', 'e', 'f'];
let Group = [...Group1, ..Group2];
console.log(Group);
// ['a', 'b', 'c', 'd', 'e', 'f']
let Group1 = ['a', 'b', 'c'];
let [first, ...remaining] = Group1;
console.log(first); // a
console.log(remaining); // (2) ["b", "c"]
let Group1 = {
A: 'a',
B: 'b',
C: 'c'
};
let Group2 = 'd';
let Group = {...Group1,Group2}
console.log(Group);
//{A: 'a', B: 'b', C: 'c', Group2: 'd'}
function fn1(...this.props) {
}
+) 추가 기능
References
Mozilla - Spread syntax (...)