if (document.querySelector("input[name='maca']")).getAttribute("checked")

<input type="radio" name="maca" id="maca1">
<input type="radio" name="maca" id="maca2">

<iframe name="sif1" sandbox="allow-forms allow-modals allow-scripts" frameborder="0"></iframe>

I want to check if any one of the input type radio buttons with the same name is checked.

CodePudding user response：

Select every radio button with that name with querySelectorAll, then use Array.some to check whether one of the items in the list is checked:

const radioButtons = document.querySelectorAll('input[name="maca"]')
const oneChecked = [...radioButtons].some(e => e.checked)
console.log(oneChecked)

<input type="radio" name="maca" id="maca1">
<input type="radio" name="maca" id="maca2" checked>

<iframe name="sif2" sandbox="allow-forms allow-modals allow-scripts" frameborder="0"></iframe>

Alternatively, you can try selecting the checked radio button (with the :checked pseudo-class) and see if an element was selected:

if(document.querySelector('input[name="maca"]:checked')){
  console.log('checked')
}

<input type="radio" name="maca" id="maca1">
<input type="radio" name="maca" id="maca2" checked>

<iframe name="sif3" sandbox="allow-forms allow-modals allow-scripts" frameborder="0"></iframe>