07-8. 배열내장 함수(shift, unshift, pop, push)
배열내장 함수
unshift & shift
unshift
const numbers = [10, 20, 30, 40];
numbers.unshift(5);
console.log(numbers);[5, 10, 20, 30, 40]shift
const numbers = [10, 20, 30, 40];
const value = numbers.shift();
console.log(value);
console.log(numbers);push & pop
push
pop
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