removing an object from an array javascript code example

Example 1: how to delete an element of an array in javascript

//you can use two functions depending of what you want to do:

let animals1 = ["dog", "cat", "mouse"]
delete animals1[1]
/*this deletes all the information inside "cat" but the element still exists
so now you'll have this:*/
console.log(animals1)//animals1 = ["dog", undefined, "mouse"]

//if you want to delete it completely, you have to use array.splice:

let animals2 = ["dog", "cat", "mouse"]
animals2.splice(1, 1)
/*the first number means the position from which you want to start to delete
and the second is how much elements will be deleted*/
console.log(animals2)//animals2 = ["dog", "mouse"]
/*Now you don't have undefined
If you did this:*/
let animals3 = ["dog", "cat", "mouse"]
animals3.splice(0, 2)//you'll have this:
console.log(animals3)//animals 3 = "mouse"
/*This happens because I put a 2 in the second parameter so it deleted
two elements from position 0
Try copying this code in your console and whatch*/

Example 2: javascript remove object from array

var array = ['Object1', 'Object2'];

// SIMPLE
	array.pop(object); // REMOVES OBJECT FROM ARRAY (AT THE END)
	// or
	array.shift(object); // REMOVES OBJECT FROM ARRAY (AT THE START)

// ADVANCED
	array.splice(position, 1);
	// REMOVES OBJECT FROM THE ARRAY (AT POSITION)

		// Position values: 0=1st, 1=2nd, etc.
		// The 1 says: "remove 1 object at position"

Example 3: javascript pop object from array

array.pop()