JSFiddle - React, Tailwind, and code Playground
HTML
<button id="button" onClick="javascript:change(this);">Follow</button>
JavaScript
function change(ref) {
if (ref.innerHTML == 'Follow') {
ref.innerHTML = 'Unfollow'
} else {
ref.innerHTML = 'Follow'
}
}
function change(ref) {
ref.innerHTML == 'Follow' ? ref.innerHTML = 'Unfollow' : ref.innerHTML = 'Follow'
}