根据obj的path获得数据

getValueOfPath.js

/**
 * 根据obj的path获得数据
 * @param obj {Object}
 * @param path {String}
 * @returns {*}
 */
function getValueOfPath(obj, path) {
    var pathArray   = path.split('.')
    var currentPath = pathArray.shift()

    if (obj[currentPath] && pathArray.length) {
        return getValueOfPath(obj[currentPath], pathArray.join('.'))
    } else {
        return obj[currentPath]
    }
}