JSFiddle - React, Tailwind, and code Playground
by Andrey Gershun
HTML
<script src="http://alasql.org/console/alasql.min.js"></script>
<span id="res"></span>
JavaScript
var data = [
{ Phase: "Phase 1", Step: "Step 1", Task: "Task 1", Value: "5" },
{ Phase: "Phase 1", Step: "Step 1", Task: "Task 2", Value: "10" },
{ Phase: "Phase 1", Step: "Step 2", Task: "Task 1", Value: "15" },
{ Phase: "Phase 1", Step: "Step 2", Task: "Task 2", Value: "20" },
{ Phase: "Phase 2", Step: "Step 1", Task: "Task 1", Value: "25" },
{ Phase: "Phase 2", Step: "Step 1", Task: "Task 2", Value: "30" },
{ Phase: "Phase 2", Step: "Step 2", Task: "Task 1", Value: "35" },
{ Phase: "Phase 2", Step: "Step 2", Task: "Task 2", Value: "40" }
]
var res = alasql('SELECT Phase, Step, SUM(CAST([Value] AS INT)) AS [Value] FROM ? GROUP BY Phase, Step',[data]);
document.getElementById("res").textContent = JSON.stringify(res);