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30secondsofcode
2018-05-02 17:21:29 +00:00
parent f7cf2263ef
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@ -231,7 +231,9 @@
(</span>acc<span class="token punctuation">,</span> val<span class="token punctuation">,</span> i<span class="token punctuation">)</span> <span class="token operator">=></span>
i <span class="token operator">===</span> arr<span class="token punctuation">.</span>length <span class="token operator">-</span> <span class="token number">2</span>
<span class="token operator">?</span> acc <span class="token operator">+</span> val <span class="token operator">+</span> end
<span class="token punctuation">:</span> i <span class="token operator">===</span> arr<span class="token punctuation">.</span>length <span class="token operator">-</span> <span class="token number">1</span> <span class="token operator">?</span> acc <span class="token operator">+</span> val <span class="token punctuation">:</span> acc <span class="token operator">+</span> val <span class="token operator">+</span> separator<span class="token punctuation">,</span>
<span class="token punctuation">:</span> i <span class="token operator">===</span> arr<span class="token punctuation">.</span>length <span class="token operator">-</span> <span class="token number">1</span>
<span class="token operator">?</span> acc <span class="token operator">+</span> val
<span class="token punctuation">:</span> acc <span class="token operator">+</span> val <span class="token operator">+</span> separator<span class="token punctuation">,</span>
<span class="token string">''</span>
<span class="token punctuation">);</span>
</pre><label class="collapse">Show examples</label><pre class="language-js"><span class="token function">join</span><span class="token punctuation">([</span><span class="token string">'pen'</span><span class="token punctuation">,</span> <span class="token string">'pineapple'</span><span class="token punctuation">,</span> <span class="token string">'apple'</span><span class="token punctuation">,</span> <span class="token string">'pen'</span><span class="token punctuation">],</span> <span class="token string">','</span><span class="token punctuation">,</span> <span class="token string">'&amp;'</span><span class="token punctuation">);</span> <span class="token comment">// "pen,pineapple,apple&amp;pen"</span>