React Js compares two arrays of objects irrespective of order
React Js Compare Objects in Two Arrays Irrespective of Order: To compare objects in two arrays in React.js irrespective of their order, you can use the following approach. Convert both arrays into JSON strings using JSON.stringify(), sort the strings, and then compare them using the === operator. This ensures that the objects' properties are compared instead of their references
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How do you compare two arrays in different order in React Js?
The provided code demonstrates a function, compareArraysOfObjects, which compares two arrays of objects in React.js, disregarding the order of objects within the arrays.
The function first checks if the lengths of the arrays are equal. If they are not, the arrays are considered unequal. Next, the arrays are sorted based on a unique identifier or a specific property. Then, a loop iterates through the sorted arrays and compares each corresponding object using JSON.stringify.
If any objects differ, the arrays are considered unequal. If the loop completes without finding any differences, the arrays are considered equal. The result of the comparisons is displayed in the React component App using isEqual1 and isEqual2.
Method1: React Js Compare Objects in Two Arrays Irrespective of Order Example
xxxxxxxxxx <script type="text/babel" data-presets="env,react"> function compareArraysOfObjects(arr1, arr2) { if (arr1.length !== arr2.length) { return false; // Arrays have different lengths, they are not equal } // Sort the arrays based on a unique identifier or specific property const sortedArr1 = arr1.sort((a, b) => a.id - b.id); const sortedArr2 = arr2.sort((a, b) => a.id - b.id); for (let i = 0; i < sortedArr1.length; i++) { const obj1 = sortedArr1[i]; const obj2 = sortedArr2[i]; // Compare the objects if (JSON.stringify(obj1) !== JSON.stringify(obj2)) { return false; // Objects are different, arrays are not equal } } return true; // Arrays are equal } function App() { const array1 = [ { id: 1, name: 'John' }, { id: 2, name: 'Jane' }, { id: 3, name: 'Alice' } ]; const array2 = [ { id: 2, name: 'Jane' }, { id: 3, name: 'Alice' }, { id: 1, name: 'John' } ]; const array3 = [ { id: 1, name: 'John' }, { id: 2, name: 'Jane' }, { id: 4, name: 'Bob' } ]; const isEqual1 = compareArraysOfObjects(array1, array2); const isEqual2 = compareArraysOfObjects(array1, array3); return ( <div className='container'> <p>array1 and array2 are equal: {isEqual1.toString()}</p> <p>array1 and array3 are equal: {isEqual2.toString()}</p> </div> ); } ReactDOM.render(<App />, document.getElementById("app")); </script>Output of React Js Compare Objects in Two Arrays Irrespective of Order
