js get first item from array

1var colors = ["red", "green", "blue"];
2var red=colors.shift();
3//colors is now ["green","blue"];

1const array = [1,2,3,4,5];
2const firstElement = array.shift();
3
4// array -> [2,3,4,5]
5// firstElement -> 1

1let array = [1,2,3] // makes your array
2array[0] // returns first element of your array.

1let array = ["a", "b", "c", "d", "e"];
2
3// Both first1 and first2 have the same value.
4let [first1] = array;
5let first2 = array[0];

1let mylist = ['one','two','three','last'];
2mylist[0],mylist[1],mylist[2],mylist[3];//this is called indexing and slicing in python
3//in javascript it called getting elements in array