Run results for: querySelector vs querySelectorAll vs getElementsByClassName vs querySelector (ID) vs getElementsByID

Run details:

User agent: Mozilla/5.0 (Linux; Android 7.1.2; MK39) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/86.0.4240.198 Safari/537.36 OPR/61.1.3076.56625

Browser: Opera 61

Operating system: Android 7.1.2

Device Platform: Desktop

Date tested: 4 years ago

HTML Preparation code:

<div class="test" id="test"></div>

AخA
 
<div class="test" id="test"></div>

Tests:

querySelector
document.querySelector(".test")
document.querySelector(".test")
querySelectorAll
document.querySelectorAll(".test")
document.querySelectorAll(".test")
getElementsByClassName
document.getElementsByClassName(".test")
document.getElementsByClassName(".test")
querySelector (ID)
document.querySelector("#test")
document.querySelector("#test")
getElementsByID
document.getElementById("test")
document.getElementById("test")