Node.js:用作对象的嵌套元素名称的变量
Node.js: variable to act as nested element name for an object
这是我的对象:
obj = {
"FirstName": "Fawad",
"LastName": "Surosh",
"Education": {"University": "ABC", "Year": "2012"}
}
这是我的 node.js 代码:
var nodeName = 'Education.Year';
obj.nodeName; //this should return the value of Year which is '2012'
有什么方法可以实现这个解决方案吗?是因为我的nodeName是从dbtable中提取出来的,不具体。
您可以将 nodeName
拆分为 .
,并为每个部分导航对象。
var result;
result = obj['Education'];
result = obj['Year'];
console.log(result); // 2012
示例:
var obj = {
"FirstName": "Fawad",
"LastName": "Surosh",
"Education": {"University": "ABC", "Year": "2012"}
};
var nodeName = 'Education.Year';
var result = nodeName.split('.').reduce((a, b) => {
a = a[b];
return a;
}, obj);
document.getElementById('result').value = result;
<input id='result' type='text' />
这是我的对象:
obj = {
"FirstName": "Fawad",
"LastName": "Surosh",
"Education": {"University": "ABC", "Year": "2012"}
}
这是我的 node.js 代码:
var nodeName = 'Education.Year';
obj.nodeName; //this should return the value of Year which is '2012'
有什么方法可以实现这个解决方案吗?是因为我的nodeName是从dbtable中提取出来的,不具体。
您可以将 nodeName
拆分为 .
,并为每个部分导航对象。
var result;
result = obj['Education'];
result = obj['Year'];
console.log(result); // 2012
示例:
var obj = {
"FirstName": "Fawad",
"LastName": "Surosh",
"Education": {"University": "ABC", "Year": "2012"}
};
var nodeName = 'Education.Year';
var result = nodeName.split('.').reduce((a, b) => {
a = a[b];
return a;
}, obj);
document.getElementById('result').value = result;
<input id='result' type='text' />