You can use the splice() method to remove the item from an array at specific index in JavaScript. The syntax for removing array elements can be given with splice(startIndex, deleteCount).
Here, the startIndex parameter specify the index at which to start splicing the array, it is required; the second parameter deleteCount is the number of elements to remove (if it is set to 0 no element will be removed). Let's check out an example to understand how it works:
<script>
var colors = ["Red", "Green", "Blue", "Yellow", "Orange"];
var removed = colors.splice(2,1); // Removes the third element
console.log(colors); // Prints: ["Red", "Green", "Yellow", "Orange"]
console.log(removed); // Prints: ["Blue"] (one item array)
console.log(removed.length); // Prints: 1
var persons = ["Alice", "John", "Peter", "Clark", "Harry"];
removed = persons.splice(2,2); // Removes the third and fourth elements
console.log(persons); // Prints: ["Alice", "John", "Harry"]
console.log(removed); // Prints: ["Peter", "Clark"]
console.log(removed.length); // Prints: 2
var fruits = ["Apple", "Banana", "Mango", "Orange", "Papaya"];
removed = fruits.splice(2); // Removes all elements starting at index 2
console.log(fruits); // Prints: ["Apple", "Banana"]
console.log(removed); // Prints: ["Mango", "Orange", "Papaya"]
console.log(removed.length); // Prints: 3
</script>
It is important to note that the splice() method modifies the original array on which it is called on, and returns a new array of the deleted elements, or an empty array if no elements were deleted.
Also, if the second argument (i.e. deleteCount) is omitted, all elements from the start to the end of the array are removed, as you can see in the above example.
Use the
splice()
MethodYou can use the
splice()
method to remove the item from an array at specific index in JavaScript. The syntax for removing array elements can be given withsplice(startIndex, deleteCount)
.Here, the
startIndex
parameter specify the index at which to start splicing the array, it is required; the second parameterdeleteCount
is the number of elements to remove (if it is set to 0 no element will be removed). Let's check out an example to understand how it works:It is important to note that the splice() method modifies the original array on which it is called on, and returns a new array of the deleted elements, or an empty array if no elements were deleted.
Also, if the second argument (i.e. deleteCount) is omitted, all elements from the start to the end of the array are removed, as you can see in the above example.
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