JSFiddle - React, Tailwind, and code Playground

HTML

<button type="button" class="btn" name="showAllBtn" onclick="toggleFunction()">Show all</button>

JavaScript

function showAllSteps() {
  alert('showAllSteps');    
  expectedFunc = function() { nextStep(); };
}

function nextStep() {
  alert('nextStep');     
  expectedFunc = function() { showAllSteps(); };
}

function toggleFunction() {
  expectedFunc();
}

var expectedFunc = function() { showAllSteps(); };