Run results for: children vs find < in jQuery

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_3) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/79.0.3945.130 Safari/537.36

Browser: Chrome 79

Operating system: Mac OS X 10.15.3

Device Platform: Desktop

Date tested: 4 years ago

Test name	Executions per second
parent.children()	4662688.0 Ops/sec
parent.find("> *")	26362140.0 Ops/sec
parent.children(".child")	1001461.8 Ops/sec
parent.find("> .child")	26675340.0 Ops/sec
parent.children("span")	997210.5 Ops/sec
parent.find("> span")	26812504.0 Ops/sec
parent.children("[data-attr=value]")	841937.0 Ops/sec
parent.find("> [data-attr=value]")	26826198.0 Ops/sec

HTML Preparation code:

<div id="#parent">
  <div class="child">Child Class 1</div>
  <div class="child">Child Class 2</div>
  <span>Child element 3</span>
  <span>Child element 4</span>
  <label data-attr="value">Child Attribute value 5</label>
  <label data-attr="value">Child Attribute value 6</label>
  <p>
     <span class="child" data-attr="value">Grandchild 7 (must not be matched)</div>
  </p>
</div><script src="https://ajax.googleapis.com/ajax/libs/jquery/3.4.1/jquery.min.js"></script>

Script Preparation code:

Benchmark.prototype.setup = function() {

          
  var parent = $("#parent")

        
  };

Tests:

parent.children()
var results = parent.children();
parent.find("> *")
var results = parent.find("> *");
parent.children(".child")
var results = parent.children(".child");
parent.find("> .child")
var results = parent.find("> .child");
parent.children("span")
var results = parent.children("span");
parent.find("> span")
var results = parent.find("> span");
parent.children("[data-attr=value]")
var results = parent.children("[data-attr=value]");
parent.find("> [data-attr=value]")
var results = parent.find("> [data-attr=value]");

Run results for: children vs find < in jQuery

parent.children()

parent.find("> *")

parent.children(".child")

parent.find("> .child")

parent.children("span")

parent.find("> span")

parent.children("[data-attr=value]")

parent.find("> [data-attr=value]")