JSFiddle - React, Tailwind, and code Playground

HTML

<script type = "javascript">
var totalCount = 200;
var years = 1;
function moveYear () {
    var i = 1;
    for (i > totalCount, i++) {
        var children = Math.random(4);
        totalCount = (totalCount + children);
    }
    var foodAbundancy = Math.floor(Math.random(35) - 15);
    var deaths = Math.random(foodAbundancy);
    totalCount = (totalCount - deaths);
    years = years++
    console.log("Years:" + years + "Total Population:" + totalCount);
}
</script>

JavaScript

var totalCount = 200;
var years = 1;
function moveYear () {
    var i = 1;
    for (i > totalCount, i++) {
        var children = Math.random(4);
        totalCount = (totalCount + children);
    }
    var foodAbundancy = Math.floor(Math.random(35) - 15);
    var deaths = Math.random(foodAbundancy);
    totalCount = (totalCount - deaths);
    years = years++
    console.log("Years:" + years + "Total Population:" + totalCount);
}
moveYear()