javascript - 在复杂的 json/数组中搜索位置以使用 javascript 进行更新(angularjs 或 pure)

Question

我需要在复杂的 json/数组中搜索一个值，并且需要在对象中进行更新。我的 json/数组是:

var myArray = [{
            "id": 5424,
            "description": "xxxxxxxx",
            "children": [{
                 "id": 8756,
                 "description": "yyyyyyy",
                 "Children": [{
                      "id": 8759,
                      "description": "zzzzzzz",
                      "Children": [{}]
                  }]
             }]
        },
        {
            "id": 5675,
            "description": "bbbbbbb",
            "Children": [{}]
        }];

我该怎么做？我尝试使用 indexOf、find、map 但没有成功!

Answer 1

您可以创建一个递归函数(纯 JavaScript):

function updatePerson(id, propToUpdate, value) {
    var person = findPerson(id, myArray);
    if (person) {
        person[propToUpdate] = value;
    }
}

function findPerson(id, children) {
    var found;
    for (var i = 0; i < children.length; i++) {
        var child = children[i];

        if (child.id == id) {
            found = child;
            break;
        } else if (child.children && child.children.length) {
            found = findPerson(id, child.children);
            if (found) {
                break;
            }
        }
    }

    return found;
}

例如参见 this jsfiddle Angular