JSFiddle - React, Tailwind, and code Playground
by jimkennelly
HTML
<script src="//code.jquery.com/jquery-3.3.1.slim.min.js"></script>
<link rel="stylesheet" href="//stackpath.bootstrapcdn.com/bootstrap/4.1.0/css/bootstrap.min.css">
<script src="//cdnjs.cloudflare.com/ajax/libs/popper.js/1.14.0/umd/popper.min.js"></script>
<script src="//stackpath.bootstrapcdn.com/bootstrap/4.1.0/js/bootstrap.min.js"></script>
<link rel="stylesheet" href="https://stackpath.bootstrapcdn.com/font-awesome/4.7.0/css/font-awesome.min.css">
JavaScript
var delays=[{"YearMonth":"2019-04","PercentDelay":0.624966},{"YearMonth":"2019-03","PercentDelay":0.775761},{"YearMonth":"2019-02","PercentDelay":0.0},{"YearMonth":"2019-01","PercentDelay":0.0},{"YearMonth":"2018-12","PercentDelay":0.0},{"YearMonth":"2018-11","PercentDelay":0.0},{"YearMonth":"2018-10","PercentDelay":0.0},{"YearMonth":"2018-09","PercentDelay":0.0},{"YearMonth":"2018-08","PercentDelay":0.0},{"YearMonth":"2018-07","PercentDelay":0.0},{"YearMonth":"2018-06","PercentDelay":0.0},{"YearMonth":"2018-05","PercentDelay":0.0}]
alert(d[0].YearMonth);
d.forEach(function(element){
alert(element.YearMonth);
});