The example code is available on a CodePen for further experimentation and is also available over on BitBucket for those that prefer to download and work with the source locally. This method modifies the array and does not create a new array. In this post, we had a quick overview of the differences between array.splice() and array.slice() and then looked at a few examples of their usage. The splice () method in Javascript helps you add, update, and remove elements in an array. Our warmColors array will contain the first three colors: Red,Orange,Yellow Conclusion We can slice the first three colors into a new array: let warmColors = colors.slice(0, 3) Imagine that we now want an array of just the warm colors in our colors array. In this article, we will talk about splice and slice methods and the differences between them and how to use them in arrays. Let’s assume that our array is reset to the original array we defined and use the slice() method to create a subset of that array. We can see that “Orange Yellow” is now gone from our array: Red,Orange,Yellow,Green,Blue,Violet,White,Black,Gray,Brown Removing with array.slice() Let’s remove the “Orange Yellow” value that we added to our array: colors.splice(2, 1) Since this is the functionality most likely to be confused with slice(), let’s now look at removing values with splice(). This method is used to add/remove an item from the given array. Now our array looks like this: Red,Orange,Orange Yellow,Yellow,Green,Blue,Violet,White,Black,Gray,Brown Removing with array.splice() splice () This method is used to get a new array by selecting a sub-array of a given array. Let’s use splice() to replace “Purple” with “Violet”: colors.splice(6, 1, 'Violet') Our array now contains “Orange Yellow”: Red,Orange,Orange Yellow,Yellow,Green,Blue,Purple,White,Black,Gray,Brownīy taking advantage of the second parameter, we can use splice() to replace values in our array. In this tutorial, we are going to learn slice( ), splice( ), & split( ) methods in JavaScript with examples.
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