Javascript Practice 51: JS Hero - Get array elements

 

Question: 

Write a function getFirstElement that takes an array and returns the first element of the array.

Example: getFirstElement([1, 2]) should return 1.

Answer: 

function getFirstElement (array) { 

let firstEl = array[0];

return firstEl

}

> declare a function getFirstElement 

> it has 1 parameter array

> we declare a variable firstEl 

> we initialize it with the first element of the array

> we access the first element of the array by entering '0' in between the square brackets

> index in an array begins with '0' 

> we return the firstEl variable