Dividing and Combining Arrays

Question

Dividing and Combining Arrays

Attempting to eliminate the last two elements of an array and then append a 2 at the end, but encountering an error. The first test is successful but the second one fails.


var userArray = [4, 2, 8, 5, 0, 1, 6]; // Different array values might be used for tests

/* Your solution should be implemented here */
userArray.splice(5, 2, 2);

CORRECT: Checking the final value of userArray when the initial array is [4, 2, 8, 5, 0, 1, 6] Yours 4, 2, 8, 5, 0, 2

INCORRECT: Examining the final value of userArray when the initial array is [-5, 3] Yours and expected result do not match. Check highlights below. Yours -5, 3, 2 Expected 2

javascript arrays

Answer 1

Answer №1

// Various array values can be tested

Remember to use this code for your solution: userArray.splice(userArray.length-2, 2, 2);

Answer 2

// Various array values can be tested

Remember to use this code for your solution: userArray.splice(userArray.length-2, 2, 2);

Answer 3

Answer №2

let numbers = [6, 7, 8, 9, 10, 8, 6]

numbers.splice(-2, 2, 7)

console.log(numbers)

Answer 4

let numbers = [6, 7, 8, 9, 10, 8, 6]

numbers.splice(-2, 2, 7)

console.log(numbers)

Answer 5

Answer №3

Tested this method and it worked successfully. However, I had to make sure that the array contained at least 3 elements before applying it.

function removeLastTwoItems(array){ 
   if(array.length > 2){
     let lastIndex = array.length - 2; // get index of first element of last two items
     array.splice(lastIndex, 2);    
     return array; // returning modified array
   }else{
     // code to handle array with less than 3 elements
   }
}

Remember to use the function as required.

Answer 6

Tested this method and it worked successfully. However, I had to make sure that the array contained at least 3 elements before applying it.

function removeLastTwoItems(array){ 
   if(array.length > 2){
     let lastIndex = array.length - 2; // get index of first element of last two items
     array.splice(lastIndex, 2);    
     return array; // returning modified array
   }else{
     // code to handle array with less than 3 elements
   }
}

Remember to use the function as required.

Dividing and Combining Arrays

Answer №1

Answer №2

Answer №3

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