Run results for: very simple stringify vs simple stringify vs JSON.stringify

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/91.0.4472.164 Safari/537.36 Edg/91.0.864.71

Browser: Chrome 91

Operating system: Windows

Device Platform: Desktop

Date tested: 3 years ago

Test name	Executions per second
verySimpleStringify	4296300.5 Ops/sec
simpleStringify	785889.6 Ops/sec
JSON.stringify	1505813.0 Ops/sec

Script Preparation code:

function simpleStringify(o) {
  let cache = [];
  let data = JSON.stringify(o, function(key, value) {
    if (typeof value === "object" && value !== null) {
      if (cache.indexOf(value) !== -1) {
        // Circular reference found, discard key
        return;
      }
      // Store value in our collection
      cache.push(value);
    }
    return value;
  });
  cache = null;
  return data;
}

function verySimpleStringify(o) {
    return "{bar:" + o.foo + "}"
}

var testData = {"bar":"foo"}

Tests:

verySimpleStringify
verySimpleStringify(testData);
simpleStringify
simpleStringify(testData);
JSON.stringify
JSON.stringify(testData)