How to change element attribute on toggle with Javascript?

Question

I would like to add attribute "aria-label=test1" when it is fa-chevron-left and "aria-label=test2" on fa-chevron-right.

"aria-label=test1" should be there on load (default). Could anyone show me how to code it for here?

function s(e) {
  const t = n(),
    c = document.querySelector(".nav-container"),
    o = document.querySelector(".content-container"),
    s = document.querySelector(".slide-btn i.fas");
  switch (e) {
    case "toggle":
      c.classList.toggle("slided"),
        s.classList.toggle("fa-chevron-right"),
        s.classList.toggle("fa-chevron-left"),
        t && o.classList.toggle("slided");
      break;
    case "show":
      c.classList.remove("slided"),
        s.classList.remove("fa-chevron-right"),
        s.classList.add("fa-chevron-left"),
        t && o.classList.add("slided");
      break;
    case "hide":
      if (c.classList.add("slided"), s.classList.add("fa-chevron-right"), s.classList.remove("fa-chevron-left"), t) {
        o.classList.remove("slided");
        const e = document.querySelector(".body-container").getAttribute("activeTopic");
        document.getElementById(e).scrollIntoView()
      }
  }
}

Does this answer your question? How to add attribute to HTML element using javascript — Lawrence Cherone
– Lawrence Cherone, Commented Feb 9, 2022 at 12:15

Tom · Accepted Answer · 2022-02-09 12:12:34Z

0

You could do :

element.setAttribute("aria-label", element.classList.contains("fa-chevron-left") ? "test1" : "test2");

answered Feb 9, 2022 at 12:12

Tom

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6 Comments

Ilham Over a year ago

I've tried this and it works after pressing an action, it doesn't show the aria-label on load or by default

Tom Over a year ago

@Ilham then you should consider asking another question. Neither the title nor the body of your question mentions default value.

Ilham Over a year ago

Sorry I am new to stackoverflow. I've tried your code, it does work, just that I want the "aria-label=test1" when the page is loaded

Tom Over a year ago

@Ilham I understood that point. But we can't really help you with the informations you provided in your question. We need more details, we can't guess the structure of your page. On which element is the aria-label attribute ? Can't you just set the default value in your HTML code ? That's why I suggested you to ask about it in another question. I recommend you to take a look at the Tour page and pinned questions of the Help Center

Ilham Over a year ago

The aria-label need to be on this element s = document.querySelector(".slide-btn i.fas"). Unfortunately I can't set the default value in the HTML code.

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