oken function">updateValue</span><span class="token punctuation">(</span><span class="token parameter">event</span><span class="token punctuation">)</span> <span class="token punctuation">{</span>
    <span class="token keyword">this</span><span class="token punctuation">.</span>value <span class="token operator">=</span> event<span class="token punctuation">.</span>target<span class="token punctuation">.</span>value<span class="token punctuation">;</span>
  <span class="token punctuation">}</span>
<span cl