javascript forEach check if item is first in array code example

Example 1: foreach in javascript

///Simple One
var a = ["a", "b", "c"];
a.forEach(function(entry) {
    console.log(entry);
});


///Function  concept

var fruits = ["apple", "orange", "cherry"];
fruits.forEach(myFunction);

function myFunction(item, index) {
  document.getElementById("demo").innerHTML += index + ":" + item + "<br>";
}

Example 2: if first php

$x = 1;
$length = count($data); 

foreach($data as $value){
        echo"
            <button class='btn";
                if($x === 1){
                    echo " first";
                }
                else if($x === $length){
                    echo " last"; 
                }
                $x++;
        echo"
           '>$value->services_name</button>
        ";
    }