![]() ![]() If both start and end indexes are specified, the slice() method creates a sequence of elements that begins from the start index up till the end index – 1. In other words, the returned array contains all elements from the starting to ending of the array. If only one parameter (index value) is specified, the slice() method creates a sequence of elements that begins from index and ends on the last array element. A new array that contains the sliced out or extracted elements. The slice() method returns a shallow copy of elements from the original array. Negative indices are also supported and will be counted from the end.The slice() method of Array object comes into two flavors that are as: array.slice(index) It takes two parameters, startIndex (inclusive) and endIndex (exclusive), which can be omitted to slice from the start index to the last element of the array. The `slice` method in JavaScript is a useful tool for extracting portions of an array without modifying the original. Let newArray = array.slice(-3, -1) // Slice from the third last element to the last element. Keep in mind that if you provide negative indices, they’ll be counted from the end: Let newArray = array.slice(2) // Slicing from index 2 (inclusive) to the end of the array In that case, it will slice the array from startIndex to the last element of the array. Slice from index 1 (inclusive) to index 4 (exclusive)Ĭonsole.log(newArray) // Output: Ĭonsole.log(array) // Output:, Original array is not modified ![]() Here’s how to use the `slice` method in JavaScript: It creates a new array that has elements starting from the specified begin index (inclusive) up to, but not including, the end index (exclusive). ![]() The Array `slice` method in JavaScript is used to extract a portion of an array, without modifying the original array. ![]() In this blog post we’ll explore how to use this useful method with examples. Negative indices are also supported and they’ll be counted from the end. You can also omit the endIndex and it will slice from startIndex to the last element of the array. The `slice` method in JavaScript is a powerful tool for extracting portions of an array without modifying the original. ![]()
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