如何在Javascript中将数组对象的第一个值检索到新数组中?
我有一个Javascript对象数组,如下所示如何在Javascript中将数组对象的第一个值检索到新数组中?,javascript,jquery,Javascript,Jquery,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 ]; 我想要一个结果数据作为 var newArray = [ ['1/1/2011', '1/1/2012'],
var data = [
{
id: 1,
date : '1/1/2011',
todo : 'Maths'
},
{
id: 2,
date : '1/1/2012',
todo : 'Science'
} ................. and soo on
];
我想要一个结果数据作为
var newArray = [
['1/1/2011', '1/1/2012'],
[
{
id:1,
todo: 'Maths'
},
{
id:2,
todo: 'Science'
}
]
]
如何在Javascript中高效地执行此操作?函数准备(数据){
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);
var结果=[],[];
对于(变量i=0;i
如果您可以使用jQuery,那么这将起作用:
var newArray = [[], data];
$.each(data, function(i,v) {newArray[0].push(v.date);delete v.date;});
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) : '';
}
对于纯javascript,这将起作用:
var newArray = [[], data];
$.each(data, function(i,v) {newArray[0].push(v.date);delete v.date;});
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) : '';
}
var newArray=[],data];
对于(var i=0;itry
我试过了,它起作用了
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);
}