The following figure illustrates the scores.splice(0,3) method call above. console.log(deletedScores) // Code language: JavaScript ( javascript )
console.log(scores) // Code language: JavaScript ( javascript )Īnd the deletedScores array contains three elements. The scores array now contains two elements. let deletedScores = scores.splice( 0, 3) Code language: JavaScript ( javascript ) The following statement deletes three elements of the scores array starting from the first element. let scores = Code language: JavaScript ( javascript ) Suppose, you have an array scores that contains five numbers from 1 to 5. Let’s take a look at the following example. The splice() method changes the original array and returns an array that contains the deleted elements. The position specifies the position of the first item to delete and the num argument determines the number of elements to delete. To delete elements in an array, you pass two arguments into the splice() method as follows: Array.splice(position,num) Code language: JavaScript ( javascript ) Deleting elements using JavaScript Array’s splice() method However, you can use this method to delete and replace existing elements as well. JavaScript Array type provides a very powerful splice() method that allows you to insert new elements into the middle of an array.
Splice javascript how to#
Summary: this tutorial shows you how to use the JavaScript Array’s splice() method to delete existing elements, insert new elements, and replace elements in an array.
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