在我的角度应用程序中,我得到了如下所示的Json数据。
[{"id":"5","name":"Immidiate"},
{"id":"4","name":"30 days"},
{"id":"3","name":"21 days"},
{"id":"2","name":"14 days"},
{"id":"1","name":"7 days"},
{"id":"6","name":"Custom"}]
我需要如下所示的输出,
[{"Name":"5","Data":"Immidiate"},
{"Name":"4","Data":"30 days"},
{"Name":"3","Data":"21 days"},
{"Name":"2","Data":"14 days"},
{"Name":"1","Data":"7 days"},
{"Name":"6","Data":"Custom"}]
这是我的代码
$rootScope.DashboardData["Name"] = widget.seriesname ;
delete $rootScope.DashboardData[widget.seriesname];
$rootScope.DashboardData["data"] = widget.dataname ;
delete $rootScope.DashboardData[widget.seriesname];
widget.chartSeries = $rootScope.DashboardData;
其中 widget.seriesname 是 "id",widget.dataname 是 "name"。
问题:密钥未更改!
使用 map
函数:
var array = [{"id":"5","name":"Immidiate"},
{"id":"4","name":"30 days"},
{"id":"3","name":"21 days"},
{"id":"2","name":"14 days"},
{"id":"1","name":"7 days"},
{"id":"6","name":"Custom"}];
var resultArray = array.map(function(elm) {
return { Name: elm[widget.seriesname], Data: elm[widget.dataname]};
});
const arr = [{"id":"5","name":"Immidiate"},
{"id":"4","name":"30 days"},
{"id":"3","name":"21 days"},
{"id":"2","name":"14 days"},
{"id":"1","name":"7 days"},
{"id":"6","name":"Custom"}];
const resultArray = arr.map(elm => ({ Name: elm.id, Data: elm.name}));
console.log(resultArray);
编辑:刚刚看到你的角度标签 - 使用角度的每个:
var out = [];
angular.forEach(data, function (obj) {
out.push({
Name: obj.id,
Data: obj.name
});
});
无角度:
对于现代浏览器,请使用 array.map:
var out = data.map(function (obj) {
return {
Name: obj.id,
Data: obj.name
};
});
console.log(out);
在较旧的浏览器中:
var data = [{"id":"5","name":"Immidiate"},
{"id":"4","name":"30 days"},
{"id":"3","name":"21 days"},
{"id":"2","name":"14 days"},
{"id":"1","name":"7 days"},
{"id":"6","name":"Custom"}];
var out = [];
for (var key in data) {
if (data.hasOwnProperty(key)) {
out.push({
'Name': data[key].id,
'Data': data[key].name
});
}
}
console.log(out);
你也可以这样做:
arr.map(({id, name}) =>({name: id, data:name}))
const objArr = [
{ id: "5", name: "Immidiate" },
{ id: "4", name: "30 days" },
{ id: "3", name: "21 days" },
{ id: "2", name: "14 days" },
{ id: "1", name: "7 days" },
{ id: "6", name: "Custom" },
];
objArr.map(({id, name}) =>({name: id, data:name}))
您也可以使用 Underscopre.js map
方法:
$scope.newList = _.map(list, function(item) {
return { Name: item.id, Data: item.name};
});
参见小提琴中的示例
var books = {
"mainKey1": {
"History" : [
{"hai" : "hello"},
{"hai" : "bye"}
],
"tempKey" : "tempValue"
},
"mainKey2":{
"Number": "AD-3424",
"Number1": "AD-3424"
},
"temparr" : [
"ai",
"bi"
]
};
function replaceKeys(books,replacementkeys,newKeyJson) {
if(typeof books == 'object') {
newKeyJson = Object.keys(books).map((book) => {
if(typeof books[book] == 'object' || Array.isArray(books[book]) ) {
replaceKeys(books[book],replacementkeys,newKeyJson[book])
}
if(replacementKeys[book]) {
newKeyJson[replacementKeys[book]] = books[book];
delete newKeyJson[book];
}
})
}
else if(Array.isArray(books)) {
for( var i=0;i< books.length;i++) {
replaceKeys(books[i],replacementkeys,newKeyJson[i]);
}
}else if(typeof books == 'string') {
return;
}else {
return;
}
}
var replacementKeys = {"History" : "replaced History","hai" : "hi","Number" : "test","Number1" : "test2","mainKey1" :"sidekey","tempKey" : "realKey","mainKey2" :"side2"};
var newKeyJson = Object.assign({},books);
replaceKeys(books,replacementKeys,newKeyJson);
console.log(newKeyJson); //this will contain object with updated keys