Javascript - 遍历 Json 对象并获取每个项目的分层键，包括嵌套对象和数组

Question

我想获取任何 JSON 对象的值和键，包括这些值和键，作为通用方法，甚至用于复杂对象

杰森

{
"timezone": 5.5,
"schedule": {
"type": "daily",
"options": {
"hour": 10,
"minute": 29
}
}

希望分层架构中的值和键像这样

timezone - 5.5
schedule.type - daily
schedule.type.options.hour - 10
schedule.type.options.minute - 29

此外，我使用这个函数可以获取 JSON 对象的所有对象键和值，即使在嵌套数组和对象中也是如此

function iterate(obj) {
for (var property in obj) {
if (obj.hasOwnProperty(property)) {
if (typeof obj[property] == "object") {
iterate(obj[property]);
} else {
console.log(property , obj[property])
}
}
}
return obj;
}

PS - 也是我 也想将其用于数组

"dirs": [ { "watchDir": "Desktop/logs", "compressAfterDays": 50 }, { "watchDir": "Desktop/alerts", "timeMatchRegex": "(.*)(\d{4})-(\d{2})-(\d{2})-(\d{2})_(\d{2})(.*)", }]

输出我想像这样

dirs[0].watchdir="Desktop/alerts"
dirs[1].watchDir="Desktop/logs"

Answer 1

const obj = { "timezone": 5.5, "dirs": [ { "watchDir": "Desktop/logs", "compressAfterDays": 50 }, { "watchDir": "Desktop/alerts", "timeMatchRegex": "(.*)(\d{4})-(\d{2})-(\d{2})-(\d{2})_(\d{2})(.*)", }] ,"schedule": { "type": "daily", "options": { "hour": 10, "minute": 29 }, 'available': true } };
function iterate(obj, str) {
let prev = '';
for (var property in obj) {
if (obj.hasOwnProperty(property)) {
if (typeof obj[property] == "object") {
const s = isArray(obj) ? prev + str + '[' + property + ']' + '.' : prev + property + (isArray(obj[property]) ? '' : '.');
iterate(obj[property], s);
} else {
prev = (str != undefined ? str : '');
console.log(prev + property, '- ' + obj[property]);
}
}
}
return obj;
}
function isArray(o) {
return o instanceof Array;
}
iterate(obj);

Answer 2

在递归调用中传递键：

function iterate(obj, path = []) {
for (let property in obj) {
if (obj.hasOwnProperty(property)) {
if (typeof obj[property] == "object") {
iterate(obj[property], [...path, property]);
} else {
console.log(path, property , obj[property])
}
}
}  
}