_.
을 사용하기 때문에 명칭이 loadsh이다!reverse,
sortBy
, range
, random
, cloneDeep
등이 있다.<body>
<script src="<https://cdn.jsdelivr.net/npm/lodash@4.17.21/lodash.min.js>"></script>
<script>
// 위의 CDN import 를 통해 _ (underscore) 식별자 사용가능
_.sample([1, 2, 3, 4]) // 3 (random 1 element)
_.sampleSize([1, 2, 3, 4], 2) // [2, 3] (random 2 element)
_.random(1, 6) // 2 (1 ~ 6 random으로 하나 고른다)
_.reverse([1, 2, 3, 4]) // [4, 3, 2, 1]
_.range(5) // [0, 1, 2, 4]
_.range(1, 5) // [1, 2, 3, 4]
_.range(1, 5, 2) // [1, 3]
</script>
</body>
<script src="<https://cdn.jsdelivr.net/npm/lodash@4.17.21/lodash.min.js>"></script>
<script>
const original = { a: { b: 1 } }
const ref = original
const copy = _.cloneDeep(original)
console.log(original.a.b, ref.a.b, copy.a.b) // 1, 1, 1
ref.a.b = 10
console.log(original.a.b, ref.a.b, copy.a.b) // 10, 10, 1
copy.a.b = 100
console.log(original.a.b, ref.a.b, copy.a.b) // 10, 10, 100
</script>
https://velog.io/@kysung95/%EC%A7%A4%EB%A7%89%EA%B8%80-lodash-%EC%95%8C%EA%B3%A0-%EC%93%B0%EC%9E%90