Slice and splice in javascript code#

Replacing elements into an array: const animals = Ĭonsole.log(animals) //.Adding elements into array: const fruits = įruits.splice(2, 0, 'orange 🍊', 'grape 🍇').Removing elements from array: const numbers =.Here are common Use Cases for splice vs slice(). Output: slic Example Use Cases of splice vs slice javascript Let slicedSentence = sentence.slice(4, 9) Here’s an example that demonstrates the usage of slice():įor arrays: let fruits = Ĭonsole.log(slicedFruits) // Output: įor strings: let sentence = ' The slice() method in JavaScript allows you to extract a portion of an array into a new array.' The original array or string is not modified by the slice() method. The return value of the slice() method in JavaScript is a new array or string that contains the extracted elements or characters. If a negative number is provided, it counts from the end of the array or string. If not provided, the extraction extends until the end of the array or string. The index at which to end extraction (excluding the element at this index). start: The index at which to begin extraction.The syntax for slice() is as follows which is for array and string: It takes in two parameters: the starting index (optional) and the ending index (optional). The slice() method in JavaScript allows you to extract a portion of an array into a new array, without modifying the original array.

Add 'pear' and 'grape' at index 2, without removing any elementsįruits.splice(2, 0, 'pear 🍐', 'grape 🍇') let fruits = Ĭonsole.log(fruits) // Output:

Slice and splice in javascript code#

Here is the example code that demonstrates how splice() works. If no elements are removed (i.e., the deleteCount is set to 0), an empty array is returned. The return value of the splice() method in JavaScript is an array containing the elements that were removed from the original array.

Elements to be added to the array at the specified position. If a negative number is provided, it counts from the end of the array.ĭeleteCount: The number of elements to be taken out from the array. Start: The index from which to begin making changes to the array. The syntax for this method is as follows: array.splice(start, deleteCount, item1, item2. It accepts various parameters, such as the starting index, the optional number of elements to be removed, and the optional elements to be added.