sports-miniapp/node_modules/traverse/examples/scrub.js

'use strict';

// scrub out circular references
var traverse = require('traverse');

var obj = { a: 1, b: 2, c: [3, 4] };
obj.c.push(obj);

var scrubbed = traverse(obj).map(function () {
	if (this.circular) { this.remove(); }
});
console.dir(scrubbed);