Extract element value out of array of objects-CodePudding

I have an array of objects where I have to find the segmentId of "PUBLICATIONS_OVERVIEW".

"sections": [
0: {
    "title": "CAMPAIGNS",
    "segments": [
        {
            "title": "CAMPAIGN_DA",
            "segmentId": 145
        },
        {
            "title": "CAMPAIGN_IM",
            "segmentId": 146
        },
        {
            "title": "CAMPAIGN_ENG",
            "segmentId": 147
        },
        {
            "title": "CAMPAIGN_DEMO",
            "segmentId": 148
            ]
        },
        {
            "title": "CAMPAIGN_BUDGET",
            "segmentId": 149
                }
            ]
        }
    ]
},
1: {
    "title": "PUBLICATIONS",
    "segments": [
        {
            "title": "PUBLICATIONS_OVERVIEW",
            "segmentId": 150
        },
        {
            "title": "PUBLICATIONS_POSTS",
            "segmentId": 151
        }
    ]
}
]

The code that I have works just fine, but I would like to merge it into one line of code and I can't seem to be able to do it (output is always undefined).

const publicationSegments = this.sections.find(section => section.title === 'PUBLICATIONS');
const segmentId = publicationSegments.segments.find(segment => segment.title === 'PUBLICATIONS_OVERVIEW').segmentId;

I would like to know how it is done properly in one single line of code.

CodePudding user response：

Just replace publicationSegments with the expression you used to initialize it.

const segmentId = this.sections.find(section => section.title === 'PUBLICATIONS').segments.find(segment => segment.title === 'PUBLICATIONS_OVERVIEW').segmentId;