token operator">!</span><span class="token function">confirm</span><span class="token punctuation">(</span><span class="token string">'Are you sure you want to abandon progress?'</span><span class="token punctuation">)</span><span class="token punctuation">)</span> <span class="token punctuation">{</span>
      transition<span class="token punctuation">.</span><span class="token function">abort</span><span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token punctuati