How can I store options tags in sessionStorage?

Question

This is my HTML:

<select>
   <option value="val1">Text1</option>
   <option value="val2">Text2</option>
   <option value="val3">Text3</option>
   <option value="val4">Text4</option>
</select>

It is being dynamically populated via $.ajax()

I need to make a function that will place "val" in key and Text in " value " in the sessionStorage , as the object reference. How can I achieve this?

How would it be iterated via index ?

My try:

document.getElementsByClassName('next')[0].addEventListener('click', function() {
    sessionStorage.setItem(option.value, option.innerText);
});

.addEventListener() is not firing at all . . . why?

Also, I need it loaded afterwards. How do I do it? Do I use .trigger() ?

Answer 1

Just like this:

 var btn = document.querySelector(".next"); var test = document.querySelector(".test"); btn.addEventListener("click", function(){ // Get a reference to the select's options var options = document.querySelectorAll("option"); // Loop through the options and store the value and text in sessionStorage: for(var i = 0; i < options.length; ++i){ sessionStorage.setItem(options[i].getAttribute("value"), options[i].textContent); } }); test.addEventListener("click", function(){ // Now, just to show how to get the values out of sessionStorage: for (var i = 0; i < sessionStorage.length; i++){ alert(sessionStorage.getItem(sessionStorage.key(i))); } }); 

 <select> <option value="val1">Text1</option> <option value="val2">Text2</option> <option value="val3">Text3</option> <option value="val4">Text4</option> </select> <button class="next">Next</button> <button class="test">Test</button> 

This code won't work, here in the Stack Overflow snippet environment, but you can see it work here .