ss="token punctuation">;</span>

arr<span class="token punctuation">.</span><span class="token function">filter</span><span class="token punctuation">(</span><span class="token punctuation">(</span><span class="token parameter">item<span class="token punctuation">,</span> index<span class="token punctuation">,</span> self</span><span class="token punctuation">)</span> <span class="token operator">=></span> item <span class="token operator">&lt;</span> <span class="token number">4</span><span class="token pu