What are the reasons for encountering errors when using concat to merge two arrays of objects?

Hello, I am encountering an Error

The error message says "concat is not a function"

Here is what I am attempting

    searchResults:any;   // inside class export
    results:any


 this.candidateSearch.postSearch(this.searchedInput,"candidateSearch").then((result)=>{

     this.results = result;

     console.log(this.results.details);       

    this.searchResults = this.searchResults.concat(this.results);   // throwing error      


          }, (err) => { 

        });

The output format of my result looks like the following:

{
    "details": [{
        "company_name": "Cybrain Software Solutions",
        "skills": "php,laravel",
        "package": "15 lakh",
        "location": "Bengaluru",
        "industry": "Software",
        "job_type": "permanent"
    }, {
        "company_name": "Floret Media Pvt Ltd",
        "skills": "php",
        "package": "10 lakh",
        "location": "Bengaluru",
        "industry": "software",
        "job_type": "per"
    }]
}

My question is: How can I concatenate the previous results?

EDIT: My goal is to have the searchResults array in the format 

{"details":[{},{},{}]} after concatenating

angulartypescriptionic3

Answer №1

To get started, make sure to set up the array

listItems:any = [];

Answer №2

In the current process, you are attempting to combine an object. The correct approach is to merge the array that exists within your object:

searchResults = {details:[]};

...

this.searchResults.details = 
    this.searchResults.details.concat(this.results.details);

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