sequential search

arr = [1,2,3,4,5,6,78,8,99];
n = arr.length;
x = 78;

function search(arr,n,c){
for(i=0;i<=n;i++){
if(arr[i] == c){
return c;
}
}
return -1;
}

let linear = search(arr,n,x)
if(x>=0){
console.log(here is a value of arr [${linear}])

}
else{
console.log('value not found')
}