Question 109902 in Json Question posted in
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Json – How to add two array object in same array?

For example, I have two array object with different column names and values and I want them to be at same index

let a = [{name: 'asha', age:20, mother: "sushi", father: "Nick"}]
let b = [{class: "10th", Sub: "science", Marks: 30}]

and I want to merge these into a single array like this:

[{name: 'asha', age:20, mother: "sushi", father: "Nick", class: "10th", Sub: "science"}]
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3

Answers


  1. 0

    You can use Array#map to combine elements at the same index with spread syntax.

    let a = [{name: 'asha', age:20, mother: "sushi", father: "Nick"}], b = [{class: "10th", Sub: "science", Marks: 30, }]
let res = a.map((x, i) => ({...x, ...b[i]}));
console.log(res);
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  2. 0

    Assuming both arrays have the same length, you can use a for loop with the spread operator on corresponding elements

    const combined = [];
for(let i...) {
  combined.push({ ...arr1[i], arr2[i]});
}
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  3. 0

    You can use Array#forEach as follows:

    const
     a = [{name: 'asha', age:20, mother: "sushi", father: "Nick"}],
     b = [{class: "10th", Sub: "science", Marks: 30}],
     c = [];
     
a.forEach((val, i) => c.push({...val,...b[i]}));

console.log( c );
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