效果
原数据
{
"id": 10,
"text": {
"title": "title",
"content": "content"
},
"image": {
"url": "image url",
"name": "image name",
"size": "900KB"
}
}
1.还原(拆解)属性链
[
{
"key": "id",
"value": 10
},
{
"key": "text.title",
"value": "title"
},
{
"key": "text.content",
"value": "content"
},
{
"key": "image.url",
"value": "image url"
},
{
"key": "image.name",
"value": "image name"
},
{
"key": "image.size",
"value": "900KB"
}
]
2.合并属性链
{
"id": 10,
"text": {
"title": "title",
"content": "content"
},
"image": {
"url": "image url",
"name": "image name",
"size": "900KB"
}
}
关键代码
// 合并属性链
Merge(items): any {
var res = {}
for (let i = 0; i < items.length; i++) {
var item = items[i];
// key
var prochains: string[] = item.key.split('.');//属性链
var tmpObj = res;
//组织属性
for (let i = 0; i < prochains.length; i++) {
const pro = prochains[i];
var islast = i == prochains.length - 1;
//没有属性就创建为obj
if (!tmpObj.hasOwnProperty(pro)) {
tmpObj[pro] = {}
}
else {
//检查一下,如果已经有属性了, 并且现在不是最后一个属性, 那么这个地方应该是obj,不是的话说明属性链有问题
if(typeof tmpObj[pro]!=="object"&&!islast){
tmpObj[pro] = {}
}
}
//属性链最后一个要赋值
if (islast) {
// value
tmpObj[pro] = item.value;
}
//属性下钻
tmpObj = tmpObj[pro]
}
}
return res;
}
// 还原属性链
objPro2ProDic(obj, dic, root) {
if (!dic) {
dic = [];
}
for (const key in obj) {
if (obj.hasOwnProperty(key)) {
const ele = obj[key];
if (typeof ele === "object" && !(ele instanceof Array)) {
//下钻
this.objPro2ProDic(ele, dic,key)
}
else{
var _key = root?`${root}.${key}`:key;
// 这里返回key-value
dic.push({
key:_key,
value:ele
});
}
}
}
return dic;
}
示例代码
https://github.com/zLulus/NotePractice/tree/dev3/Website/DotNetCore/CoreAngular/src/app/name-chains
转载于:https://www.cnblogs.com/Lulus/p/9483020.html
相关资源：数据结构—成绩单生成器
