Program JavaScript untuk Membandingkan Elemen Dua Susunan

Dalam contoh ini, anda akan belajar menulis program JavaScript yang akan membandingkan unsur-unsur dari dua tatasusunan.

Untuk memahami contoh ini, anda harus mempunyai pengetahuan mengenai topik pengaturcaraan JavaScript berikut:

• JavaScript untuk gelung
• Array JavaScript
• Ekspresi Fungsi dan Fungsi JavaScript

Contoh 1: Bandingkan Susun atur Menggunakan JSON.stringify ()

 // program to compare two arrays function compareArrays(arr1, arr2) ( // compare arrays const result = JSON.stringify(arr1) == JSON.stringify(arr2) // if result is true if(result) ( console.log('The arrays have the same elements.'); ) else ( console.log('The arrays have different elements.'); ) ) const array1 = (1, 3, 5, 8); const array2 = (1, 3, 5, 8); compareArrays(array1, array2);

Pengeluaran

 Susunan mempunyai unsur yang sama.

The JSON.stringify()kaedah menukarkan pelbagai ke dalam JSON tali.

 JSON.stringify((1, 3, 5, 8)); // "(1,3,5,8)"

Kemudian, dua rentetan array dibandingkan dengan menggunakan ==.

Contoh 2: Bandingkan Array menggunakan Loop

 // program to extract value as an array from an array of objects function compareArrays(arr1, arr2) ( // check the length if(arr1.length != arr2.length) ( return false; ) else ( let result = false; // comparing each element of array for(let i=0; i 

Output

 The arrays have the same elements.

In the above program,

The length of the array elements are compared using the length property. If both arrays have different lengths, false is returned.

Else,

• The for loop is used to iterate through all the elements of the first array.
• During each iteration, elements of the first array are compared to corresponding elements of the second array.

   arr1(i) != arr2(i)

• If the corresponding array elements of both arrays are not equal, false is returned and the loop terminates.
• If all elements are equal, true is returned.

 array1 = (1, (a : 2), 3, 5);