$.getJSON("/quotes.json", function(data){ let index = data[Math.floor(Math.random() * data.length)]; if(index.includes("OGNUM1") && index.includes("SQRTNUM1")) { let ognum = Math.floor(Math.random() * 3000); index = "the square root of " + ognum + " is " + Math.sqrt(ognum) } $("p#randomquote").text(index) })