将二维数组转化为对象的形式

转之前的数据：

转之后：

const entries = new Map([['foo', 'bar'],['baz', 42],['beginNode', '202212151048010054'],['beginNode', '202212151048447710'],]);
console.log(entries)const obj = Object.fromEntries(entries);console.log(obj);
// expected output: Object { foo: "bar", baz: 42, beginNode: "202212151048447710" }

New Map 将会是无重复的数据，重复key取后一个

eg:

/*newArr :[]*/
const newList = []  
newArr.forEach(item => {const entries = new Map(item)newList.push(Object.fromEntries(entries))})

API点这里

将数组中的每n项分为一组并重组数组

let n = 3 
for (let i = 0; i < oldArr.length; i += n) {newArr.push(oldArr.slice(i, i + n))}