JavaScript is still new to me and I'm struggling with mapping an array. I'm not sure how to return an array with objects.
Here is the original array:
array1 = [{firstName: "Harry"},
{lastName: "Potter"}];
After using array1.map, it currently shows:
array1 = ["Potter"];
My goal is to have array1 transformed like this after mapping the lastName:
array1 = [{lastName: "Potter"}];
If you're looking to narrow down an array based on specific criteria, the filter function is a great alternative.
array1 = [{name: "John"},
{age: 30},
{city: "New York"}];
console.log(array1.filter(item => item.age >= 30));According to the documentation:
The map() function generates a fresh array filled with the outcomes of applying a specified function to each element in the original array.
This results in the creation and return of a new array.
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