第一段代碼
let arr = ['1', '4', '55'], data = [], item = {}
arr.forEach(el => {
item.num = el
data.push(item)
})
console.log(data) // [ { num: '55' }, { num: '55' }, { num: '55' } ]
第二段代碼
let arr = ['1', '4', '55'], data = [], item = {}
arr.forEach(el => {
item = {
num: el
}
data.push(item)
})
console.log(data) // [ { num: '1' }, { num: '4' }, { num: '55' } ]
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標籤:JavaScript
