node-oom-heapdump/tests/oom_app.js

Create a V8 heap snapshot when an "Out of Memory" error occurs, or create a heap snapshot or CPU profile on request.

let path = require('path');

let oom = require("../index.js")({
    path: path.resolve(__dirname, 'my_heapdump'),
    heapdumpOnOOM: true,
    //OOMImplementation: "GC_MONITORING", // use the old implementation
    addTimestamp: false
});

// It is important to use named constructors (like the one below), otherwise
// the heap snapshots will not produce useful outputs for you.
function LeakingClass1() {
}

var leaks = [];
var handle = setInterval(function () {
    for (var i = 0; i < 100000; i++) {
        leaks.push(new LeakingClass1);
    }

    console.error('Leaks: %d', leaks.length);
}, 100);