FTT-JavaScript/aulajs17.html at master · luizgustavo77/FTT-JavaScript · GitHub

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<!DOCTYPE html>
<html>
    <head>
    <title>JavaScript Aula 17</title>
    <script>
        var csvData;

        function loadCsv() {

            var xhttp = new XMLHttpRequest();
            xhttp.onreadystatechange = function() {
                if (this.readyState == 4 && this.status == 200) {
                    csvData = this.responseText; //importa o arquivo texto inteiro em um único string
                    createDataTable(csvData.split('\r')); //quebra o string em um array conforme final de linha
                }
            };
            xhttp.open("GET", "data/FL_insurance_sample2.csv", true);
            xhttp.send();
        }

        function createDataTable(data) {

            var dadosDiv = document.getElementById("dados");

            var tableTag = document.createElement("table");

            for (let linha of data) {

               registros = linha.split(',');
               var trTag = document.createElement("tr");

               for (let reg of registros) {
                  var tdTag = document.createElement("td");
                  tdTag.innerHTML = reg;
                  trTag.appendChild(tdTag);
               };

               tableTag.appendChild(trTag);
            };

            dadosDiv.appendChild(tableTag);
        }
    </script>
</head>

<body>
    <h1>JavaScript Aula 17</h1>
    <h2>AJAX - Asynchronous JavaScript And XML</h2>
    <button onclick="loadCsv();">Ler CSV</button>
    <div id="dados"></div>
</body>
</html>