我有这个JSON,我从网络服务电话回来了:
{
"name": "My Name",
"path": "my path",
"id": "44",
"type": "my type",
"classes": "my classes"
},
{
"name": "his Name",
"path": "his path",
"id": "76",
"type": "his type",
"classes": "his classes"
}
然后我需要将其转换为此格式
{
"44" : { "name" : "My Name", "path" : "my path" },
"76" : { "name" : "his Name", "path" : "his path" }
}
我最初的天真尝试是:
var myData = [];
for (var i = 0; i < rawData.length; i++) {
myData.push({
rawData[i].id :
{
"path": rawData[i].path,
"name": rawData[i].name
}
});
因语法错误而失败,所以我最终得到了这个:
var myData = [];
for (var i = 0; i < rawData.length; i++) {
myData.push(rawData[i].id,
{
"path": rawData[i].path,
"name": rawData[i].name
});
它主要起作用。我的数组已填充,但问题是我的myData
数组没有&#34; 44&#34;和&#34; 76&#34;对象的一部分,只是{ "name" : "", "path" : "" }
部分。我希望这是因为我对JSON和javscript对象的工作方式缺乏了解。
答案 0 :(得分:1)
不要使用Array.prototype.push()
,使用方括号表示法并将输出定义为对象而不是数组。
var myData = {};
for (var i = 0; i < rawData.length; i++) {
myData[rawData[i].id] = {
"path": rawData[i].path,
"name": rawData[i].name
}
}
答案 1 :(得分:1)
您想要的输出不是数组,所以这是您的起点。您所说的输出是对象,而不是数组。
您可以通过创建空白对象然后使用id
作为关键字将对象添加到其中来构建结果:
var myData = {};
rawData.forEach(function(entry) {
myData[entry.id] = {
name: entry.name,
path: entry.path
};
});
或者,如果您不想使用forEach
(它是ES5,但可以为旧版浏览器填充),则采用传统方式:
var myData = {};
var index, entry;
for (index = 0; index < rawData.length; ++index) {
entry = rawData[index];
myData[entry.id] = {
name: entry.name,
path: entry.path
};
}
答案 2 :(得分:0)
您需要将您的ID转换为字符串吗?
var myData = {};
for (var i = 0; i < rawData.length; i++) {
myData[String(rawData[i].id)] = {
"path": rawData[i].path,
"name": rawData[i].name
};
}
答案 3 :(得分:0)
其他海报所写内容的变体:
// Create a new empty object.
var out = {};
// Loop over your array of objects
// Add the each object id as a key to the output object, and the object as the value.
for (var i = 0, l = arr.length; i <l; i++) {
var obj = arr[i];
out[obj.id] = obj;
// Delete the properties from the newly added object you don't want.
delete obj.id;
delete obj.type;
delete obj.classes;
}