Answers for "js queryselector select all"

js foreach querySelectorAll

const allSpanElements = document.querySelectorAll('span');

allSpanElements.forEach((spanElement) => {
  	// Here comes the Code that should be executed on every Element, e.g.
	spanElement.innerHTML = "This Content will appear on every span Element now";
});

javascript get all select options

var options = document.getElementById('mySelectID').options;
for (let i = 0; i < options.length; i++) { 
  console.log(options[i].value);//log the value
}