JavaScript: Remove a specific element from an array

JavaScript Array: Exercise-31 with Solution

Remove Specific Element

Write a JavaScript function to remove a specific element from an array.

Test data:
console.log(remove_array_element([2, 5, 9, 6], 5));
[2, 9, 6]

Visual Presentation:

Sample Solution:

JavaScript Code:

// Function to remove an element from an array
function remove_array_element(array, n) {
  // Find the index of the element 'n' in the array
  var index = array.indexOf(n);
  
  // Check if the element exists in the array (index greater than -1)
  if (index > -1) {
    // Remove one element at the found index
    array.splice(index, 1);
  }
  
  // Return the modified array
  return array;
}

// Output the result of removing element '5' from the array [2, 5, 9, 6]
console.log(remove_array_element([2, 5, 9, 6], 5));

Output:

[2,9,6]

Flowchart:

ES6 Version:

// Function to remove an element from an array
const remove_array_element = (array, n) => {
  // Find the index of the element 'n' in the array
  const index = array.indexOf(n);

  // Check if the element exists in the array (index greater than -1)
  if (index > -1) {
    // Remove one element at the found index
    array.splice(index, 1);
  }

  // Return the modified array
  return array;
};

// Output the result of removing element '5' from the array [2, 5, 9, 6]
console.log(remove_array_element([2, 5, 9, 6], 5));

Live Demo:

See the Pen JavaScript - Remove a specific element from an array- array-ex- 31 by w3resource (@w3resource) on CodePen.

For more Practice: Solve these Related Problems:

• Write a JavaScript function that removes a specific element from an array using the filter() method.
• Write a JavaScript function that uses splice() to remove the first occurrence of a specified element.
• Write a JavaScript function that removes all occurrences of a given element and returns the updated array.
• Write a JavaScript function that checks for the existence of the element before attempting removal and handles errors.

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• JavaScript array Exercises Home ↩
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