我有一个Javascript对象数组,如下所示
var data = [
{
id: 1,
date : '1/1/2011',
todo : 'Maths'
},
{
id: 2,
date : '1/1/2012',
todo : 'Science'
} ................. and soo on
];
我希望结果数据为
var newArray = [
['1/1/2011', '1/1/2012'],
[
{
id:1,
todo: 'Maths'
},
{
id:2,
todo: 'Science'
}
]
如何有效地在Javascript中实现这一点?
答案 0 :(得分:0)
function prepare(data) {
var result = [ [], [] ];
for(var i = 0; i < data.length; i++) {
result[0][i] = data[i].date;
result[1][i] = { id: data[i].id, todo: data[i].todo };
}
return result;
}
var newArray = prepare(data);
答案 1 :(得分:0)
如果你可以使用jQuery,那么这将有效:
var newArray = [[], data];
$.each(data, function(i,v) {newArray[0].push(v.date);delete v.date;});
对于纯JavaScript,这将起作用:
var newArray = [[], data];
for (var i=0; i<=data.length; i++) {
typeof data[i]==="object" ? (newArray[0].push(data[i].date), delete data[i].date) : '';
}
答案 2 :(得分:0)
试
var data = [{
id: 1,
date: '1/1/2011',
todo: 'Maths'
}, {
id: 2,
date: '1/1/2012',
todo: 'Science'
}];
var array = [];
data.forEach(function (item) {
array.push(item.date);
delete item.date;
})
data.unshift(array)
console.log(data)
答案 3 :(得分:0)
我试过了。它的工作
var data = [
{
id: 1,
date : '1/1/2011',
todo : 'Maths'
},
{
id: 2,
date : '1/1/2012',
todo : 'Science'
}];
var newArray=formatStr(data);
alert(JSON.stringify(newArray));
function formatStr(data){
arr1=[];
var arr2=[];
for (var i in data) {
var obj={};
obj["id"]=data[i].id;
obj["todo"]=data[i].todo;
arr1.push(data[i].date);
arr2.push(obj);
}
var result=[arr1,arr2];
return (result);
}