数组合并
const a = [1,2,3]
const b = [2,5,6]
const c = [...a, ...b]
console.log(c)
[1, 2, 3, 2, 5, 6]
数组合并去重
const a = [1,2,3]
const b = [2,5,6]
const c = [...new Set([...a, ...b])]
console.log(c)
[1, 2, 3, 5, 6]
对象合并 有相同的值会取后面的值
const obj1 = {
a:1
}
const obj2 = {
b:2
}
const obj = {
...obj1, ...obj2}
console.log(obj)
{
a: 1, b: 2}
const obj1 = {
a:1
}
const obj2 = {
a:2
}
const obj = {
...obj1, ...obj2}
console.log(obj)
{
a: 2}