JSFiddle - React, Tailwind, and code Playground

HTML

<a href="javascript:void(0);" data-icol="[1]" id="name">Show Name</a>

JavaScript

$(function(){
     $('#name').click(fnShowHide);
});

function fnShowHide()
{
    
     var iCol = $(this).data('icol'); //will give [1]
    console.log(iCol);
         //Your code
     $(this).text(function(_, text) { //now this refers to the element clicked
        return text === 'Show Name' ? 'Hide Name' : 'Show Name';
     });
}