freeCodeCamp/guide/english/certifications/javascript-algorithms-and-data-structures/basic-data-structures/remove-items-using-splice/index.md

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Remove Items Using splice()

Remove Items Using splice()

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Problem Explanation

• The splice() function must be called on the arr array in order to remove 1 or more elements from the center of the array.
• The array arr currently adds up to the value of 16. Simply remove as many variables neccessary to return 10.

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Solutions

Solution 1 (Click to Show/Hide)

function sumOfTen(arr) {
  // change code below this line
  arr.splice(1, 2);
  // change code above this line
  return arr.reduce((a, b) => a + b);
}

// do not change code below this line
console.log(sumOfTen([2, 5, 1, 5, 2, 1]));