javascript array get first element code example

Example 1: javascript take first element of array

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

// array -> [2,3,4,5]
// firstElement -> 1

Example 2: javascript get first element of array

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

Example 3: javascript get first element of array

let array = ["a", "b", "c", "d", "e"];

// Both first1 and first2 have the same value.
let [first1] = array;
let first2 = array[0];

Example 4: js get first item from array

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

Example 5: Return the first element of the array javascript

var studentDetails=
[
   {
      "firstName":"John"
   },
   {
      "firstName":"David"
   },
   {
      "firstName":"Bob"
   },
   {
      "firstName":"Mike"
   },
   {
      "firstName":"Carol"
   }
]
var firstObjectValue = "";
if(studentDetails.length > 1){
   for(var index=0;index< studentDetails.length;index++){
      firstObjectValue=studentDetails[index].firstName;
      break;
   }
} else {
   firstObjectValue=undefined;
}
if(firstObjectValue!=undefined)
   console.log(firstObjectValue);
else
console.log("There is no element in the array");

Example 6: javascript get first element of array

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