<span class="hljs-keyword">let</span> num = -<span class="hljs-number">3</span>;
<span class="hljs-keyword">let</span> diff = <span class="hljs-number">5</span> - <span class="hljs-number">3</span>;
<span class="hljs-keyword">let</span> diff = <span class="hljs-number">5</span>-<span class="hljs-number">3</span>;
<span class="hljs-comment">// Who writes JS like that??</span>
<span class="hljs-keyword">let</span> num = - <span class="hljs-number">3</span>;
<span class="hljs-keyword">let</span> diff = <span class="hljs-number">5</span> -<span class="hljs-number">3</span>;
<span class="hljs-keyword">let</span> diff = <span class="hljs-number">5</span>- <span class="hljs-number">3</span>;
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