//原数据
dataOld: [{
count: '33', area: '122.2', districtId: 43000 }, {
count: '44', area: '168.2', districtId: 43001 }]
//接口需要的数据
dataNew: [{
countAll: '33', countArea: '122.2', districtId: 43000 }, {
count: '44', area: '168.2', districtId: 43001 }]
方法一:使用map循环,在map循环内创建一个新对象,将item要改变的key赋给新创建的对象里面新key值,然后push给一个新创建的数组dataNew即可;
let dataNew = []
dataOld.map(item => {
let datas = {
countAll: item.count,
countArea: item.area,
districtId: item.districtId
}
dataNew.push(datas)
})
console.log(dataNew)
方法二:使用map循环 + replace替换,通过循环然后将子类JSON.stringify后采用replace来改变属性key;
let dataNew = []; //新数组
dataOld.map(item => {
let _item = JSON.parse(JSON.stringify(item).replace('count', 'countAll').replace('area', 'countArea'));
dataNew.push(_item)
});
方法三:使用forEach循环 + for循环,通过Object.keys()来改变属性key;
convertKey (arr, key) {
let dataNew = []; //新数组
this.dataOld.forEach((item, index) => {
let obj = {
}; //新数组里的新对象
for (var i = 0; i < key.length; i++) {
obj[key[i]] = item[Object.keys(item)[i]]; //key值替换
}
dataNew.push(obj);
})
console.log(dataNew,'dataNew');
return dataNew;
},
// 改变后的key
let dataNew = this.convertKey(this.dataOld, ['countAll', 'countArea', 'districtId']);