html queryselector by id code example

Example 1: js select element by css selector

// First Element:
document.querySelector('.class')

// Multiple Elements:
document.querySelectorAll('.class')

Example 2: queryselector name attribute

document.querySelectorAll('[property]'); // All with attribute named "property"
document.querySelectorAll('[property="value"]'); // All with "property" set to "value" exactly.