Kindly dont make a habit of asking for free code.
let arr = [1,2,3,4,5,6,7,8,9];
for(i=0;i<arr.length;i++) {
let a = arr[i];
let b = a + 5;
if(arr.indexOf(b)!= -1) {
let tdtag1 = document.createElement("td");
let tdtag2 = document.createElement("td");
let trtag = document.createElement("tr");
let trText1 = document.createTextNode(a);
tdtag1.appendChild(trText1);
let trText2 = document.createTextNode(b);
tdtag2.appendChild(trText2);
trtag.appendChild(tdtag1);
trtag.appendChild(tdtag2);
document.getElementById("myTable").appendChild(trtag);
}
else if(a == 5) {
let tdtag1 = document.createElement("td");
let trtag = document.createElement("tr");
let trText1 = document.createTextNode(a);
tdtag1.appendChild(trText1);
trtag.appendChild(tdtag1);
document.getElementById("myTable").appendChild(trtag);
}
}
<table id="myTable">
</table>