How to remove an array item in TypeScript?

Problem: 

I am working on a project using TypeScript.  I have an array with a property as a key. I want to remove an item from the array. How can I do that? 

In this article, we are going to learn how to remove an array item in TypeScript? 

Solution 1: 

ExampleArray: any = [
    { "key": 1, "item": 'faysal' },
    { "key": 2, "item": 'Islam' },
    { "key": 3, "item": 'Shuvo' },
    { "key": 4, "item": 'faysal shuvo' }
]

this is your array. This is how you remove an item from it.

removeItem(key) {
    this.ExampleArray = this.ExampleArray.filter(item => item.key !== key);
}

To delete a specific object from an array you can use this method. give the key value as an argument and it will remove the item from the array.

Solution 2:

delete exampleArray[key];

by doing this the element will be set to undefined.

There is a better solution, you can use the Array.prototype.splice function: 

const index = exampleArray.indexOf(key, 0);
if (index > -1) {
   exampleArray.splice(index, 1);
}

---

Hope this solves your problem. If you have any type of problem please comment below.