Given a JavaScript array containing objects in and the task is to delete certain objects from an array of objects. There are two approaches to solving this problem which are discussed below:
Approach 1:
- Use array.forEach() method to traverse every object of the array.
- For each object, use delete obj.property to delete the certain object element from an array of objects.
Example: This example implements the above approach.
Javascript
let arr = [{ a: 'Val_1', b: 'Val_2'}, { a: 'Val_3', b: 'Val_4'}, { a: 'Val_1', b: 'Val_2'}];function myFunc() { arr.forEach(function (obj) { delete obj.a }); console.log(JSON.stringify(arr));}myFunc(); |
Output
[{"b":"Val_2"},{"b":"Val_4"},{"b":"Val_2"}]
Approach 2:
- Use array.map() method to traverse every object of the array.
- For each object use delete obj.property to delete the certain object from array of objects.
Example: This example implements the above approach.
Javascript
let arr = [{ a: 'Val_1', b: 'Val_2'}, { a: 'Val_3', b: 'Val_4'}, { a: 'Val_1', b: 'Val_2'}];function myFunc() { arr.map(function (obj) { delete obj.a; return obj; }); console.log(JSON.stringify(arr));}myFunc(); |
Output
[{"b":"Val_2"},{"b":"Val_4"},{"b":"Val_2"}]
