How to compare two json array with TypeScript?

Question

For example I have this dataInput json:

dataInput= [
    {text: 'text1'},
    {text: 'text2'},
    {text: 'text3'}
];

and I want to compare it with:

dataInputUpdated= [
  {text: 'text1', info: 'something'},
  {text: 'text2'},
  {text: 'text3'}
];

How to compare between them with Typescript? Is there any equal method? This is array of objects, so I wanna know its not equal on any change.

Answer 1

You can use JSON.stringify method to do the comparison. Here is a sample:

let dataInput= [
    {text: 'text1'},
    {text: 'text2'},
    {text: 'text3'}
];

let dataInputUpdated= [
  {text: 'text1', info: 'something'},
  {text: 'text2'},
  {text: 'text3'}
];

let areSame: boolean = JSON.stringify(dataInput) === JSON.stringify(dataInputUpdated);

alert(areSame); // returns false