Program JavaScript untuk Membandingkan Elemen Dua Array

Dalam contoh ini, Anda akan belajar menulis program JavaScript yang akan membandingkan elemen dari dua array.

Untuk memahami contoh ini, Anda harus memiliki pengetahuan tentang topik pemrograman JavaScript berikut:

• JavaScript untuk loop
• Array JavaScript
• Fungsi JavaScript dan Ekspresi Fungsi

Contoh 1: Bandingkan Array 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);

Keluaran

 Array memiliki elemen yang sama.

The JSON.stringify()Metode mengubah array ke string JSON.

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

Kemudian, kedua string array tersebut dibandingkan menggunakan ==.

Contoh 2: Bandingkan Array yang digunakan untuk 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);