array first code example

Example 1: get first key of array php

$firstKey = array_key_first($array);

Example 2: 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 3: find a single element in array of objects javascript

myArray.find(x => x.id === '45').foo;

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

console.log(ary[0]);