parameter">str<span class="token punctuation">,</span> len</span><span class="token punctuation">)</span> <span class="token punctuation">{</span>
  <span class="token keyword">if</span> <span class="token punctuation">(</span>str<span class="token punctuation">.</span>length <span class="token operator">></span> len<span class="token punctuation">)</span> <span class="token punctuation">{</span>
    <span class="token keyword">return</span> str<span class="token punctuation">.</span><span class="token func