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Slice an array in javascript
Slice an array in javascript













slice an array in javascript

The Slice method returns a portion of an array into a new array. Just note that most of the discussion and examples are going to be about Array.Slice() method. It will either return a sub-string or a sub-array. The method's behavior is almost same in both the cases. To get into details of what Strings and Arrays are in Javascript is beyond the scope of this article. However the 'slice()' method can be applied to them tooĪrray samples //Examples of Arrays in Javascript The following are 'strings' but not 'String objects'

slice an array in javascript

Let str_spcl_chars = new str_zeros = new String("000000") Let str_greet = new String("Hey! Developers") String samples //Examples of String Objects in Javascript In technical terms, the slice() method can be applied to two types of objects in Javascript: Strings and Arrays.

slice an array in javascript

There are two types of things(more appropriately called objects) which we can get a slice of. What are the things we can get a slice of? In this article we will discuss what are those things, how do we slice them and a few other aspects of the slice() method. All that slice() method does is get us a slice(a portion) of things. And its definitely for you if you thought there couldn't be an 2500+ words article merely on slice() method.If you have used it earlier and have been planning to get a deeper understanding of it.If you have copied and pasted a chunk of code from stackoverflow which had slice() method but didn't understand the code completely.And you're equipped with a handy mnemonic, that splice compared to slice has an additional letter, 'p', which helps you remember that splice mutates and optionally adds or removes from the original array. You now know that slice makes a shallow copy of the original array, while splice mutates the original array and optionally adds or removes elements. ConclusionĪnd there we have it! This blog goes over the differences between slice and splice. And because splice can add and remove stuff to the original array, that means that it also mutates the original array. Because of the extra letter, I associate the additional letter to splice's use of adding or removing from the original array. splice has an extra letter, 'p', compared to slice. I remember the difference between slice and splice using a mnemonic. insert 'juliet' and 'zeke' at 3rd index // returns Ĭonsole. splice ( 3, 1, 'juliet', 'zeke' ) // remove 'harper'.















Slice an array in javascript