JSFiddle - React, Tailwind, and code Playground

JavaScript

var b10 = ["UIUC", "IU", "Iowa", "UMD", "UMich"];
var count = 0;
for (var i = 0; i < b10.length; i++) {
  var b10school = b10[i];
  if (b10school[0] == "U") {
    count = count + 1;
  }
}
alert count;