How do I remove an array item in TypeScript?

Question

I have an array that I\'ve created in TypeScript and it has a property that I use as a key. If I have that key, how can I remove an item from it?

Answer 1

You can use the splice method on an array to remove the elements.

for example if you have an array with the name arr use the following:

arr.splice(2, 1);

so here the element with index 2 will be the starting point and the argument 2 will determine how many elements to be deleted.

If you want to delete the last element of the array named arr then do this:

arr.splice(arr.length-1, 1);

This will return arr with the last element deleted.

Example:

var arr = ["orange", "mango", "banana", "sugar", "tea"];
arr.splice(arr.length-1, 1)
console.log(arr); // return ["orange", "mango", "banana", "sugar"]