My goal is to create a map and store its data in an array called "rows." This array will then be utilized in a DataGrid component from material-ui

However, when I run a console.log(rows), it returns an undefined list.

let rows: Array<{ id: number }> = []

rows = products?.map((product) =>  
  { id: product.product_id }
) 

Attempting to do it without using map does work, like so:

let rows = [
 {id: 1},
 {id: 2},
 {id: 3},
]

The array "rows" will be utilized in a DataGrid component from material-ui. Thus, I need to populate the array rows using map to keep it consistent with the above array.

Answer №1

The map callback function is currently not yielding any outputs. Below are two potential solutions to rectify this issue:

  1. Enclosing the object to be returned within parentheses
rows = products?.map(product => ({ id: product.product_id }));
  1. Utilizing the return keyword
rows = products?.map(product => { 
  return { 
    id: product.product_id 
  } 
});

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