@airbnb/node-memwatch/examples/basic_heapdiff.js

Keep an eye on your memory usage, and discover and isolate leaks.

const
memwatch = require('..'),
url = require('url');

function LeakingClass() {
}

memwatch.gc();

var arr = [];

var hd = new memwatch.HeapDiff();

for (var i = 0; i < 10000; i++) arr.push(new LeakingClass);

var hde = hd.end();

console.log(JSON.stringify(hde, null, 2));