/Web APIs


The ariaColIndexText property of the Element interface reflects the value of the aria-colindextext attribute, which defines a human readable text alternative of aria-colindex.



In this example the aria-colindex attribute on the element with an ID of role-heading is set to "Aria Role column". Using ariaColIndexText we update the value to the string "New column name".

<table id="semantic-table" role="table" aria-label="Semantic Elements" aria-describedby="semantic_elements_table_desc" aria-rowcount="100">
  <caption id="semantic_elements_table_desc">Semantic Elements to use instead of ARIA's roles</caption>
  <thead role="rowgroup">
    <tr role="row">
      <th role="columnheader" id="role-heading" aria-sort="none" aria-rowindex="1" aria-colindex="1" aria-colindextext="Aria Role column">ARIA Role</th>
      <th role="columnheader" id="element-heading" aria-sort="none" aria-rowindex="1">Semantic Element</th>
  <tbody role="rowgroup">
    <tr role="row">
      <td role="cell" aria-rowindex="11">header</td>
      <td role="cell" aria-rowindex="11">h1</td>
    <tr role="row">
      <td role="cell" aria-rowindex="16">header</td>
      <td role="cell" aria-rowindex="16">h6</td>
    <tr role="row">
      <td role="cell" aria-rowindex="18">rowgroup</td>
      <td role="cell" aria-rowindex="18">thead</td>
    <tr role="row">
      <td role="cell" aria-rowindex="24">term</td>
      <td role="cell" aria-rowindex="24">dt</td>
let el = document.getElementById('role-heading');
console.log(el.ariaColIndexText); // "Aria Role"
el.ariaColIndexText = "New column name"
console.log(el.ariaColIndexText); // "New column name"


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