JavaScripti programm kahe massiivi elementide võrdlemiseks

Selles näites õpid kirjutama JavaScripti programmi, mis võrdleb kahe massiivi elemente.

Selle näite mõistmiseks peaksid teil olema teadmised järgmistest JavaScripti programmeerimise teemadest:

• JavaScript silmusele
• JavaScripti massiiv
• JavaScripti funktsioonide ja funktsioonide avaldised

Näide 1: Massiivide võrdlemine JSON.stringify () abil

 // 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);

Väljund

 Massiividel on samad elemendid.

JSON.stringify()Meetod muundab massiivi JSON string.

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

Seejärel võrreldakse kahte massiivi stringi kasutades ==.

Näide 2: võrrelge massiive loopi jaoks

 // 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);