[Javascript] Safer property access with Lodash's 'get' method

Property access in Javascript can be problematic - especially when dealing with nested Objects and Arrays. Doing it manually and in a safe manner requires tons of boilerplate inside conditionals and results in a defensive style of coding. In this lesson we look at why this is a problem & how to overcome it using the get method from the popular utility library Lodash

var data = {

  "response": {

    "body": {

      "deviceDetail": {

        "deviceDetails": [

          {

            "handsetIMEI": 7356383,

            "handsetDateLastUsed": "2019-04-20T01:02:03.812Z",

          },

          {

            "handsetIMEI": 34534,

            "handsetDateLastUsed": "2019-04-20T01:02:03.812Z",

          }

        ]

      }

    }

  }}

const ns = ['response', 'body', 'deviceDetail', 'deviceDetails'];

const handsetIMEI = _.get(data, ns.concat([0, 'handsetIMEI']))

console.log(handsetIMEI)

巴特西

[Javascript] Safer property access with Lodash's 'get' method

最新文章

热门文章