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fix a small mistake #15

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fix a small mistake #15

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2 changes: 1 addition & 1 deletion open-in-web-browser.html
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Expand Up @@ -2736,7 +2736,7 @@ <h3>5.1 : Using Maps instead of Object Literals (ES2015)</h3>
<code>keys()</code>, <code>set()</code>, <code>values()</code>).</li>
<li>The <code>.set()</code> method returns the Map. Thus, <code>.set()</code> can be chained
(i.e.
<code>myMap.set(key,value).add(key,value);</code>).</li>
<code>myMap.set(key,value).set(key,value);</code>).</li>
<li>If you want to use Array methods on a Map simply spread the map into an array (i.e. <code>[...myMap].filter(...);</code>).</li>
<li>A narrow version of <code>Map()</code> is also available called <code>weakMap()</code>. A
<code>weakMap()</code>, mainly differs from a <code>Map()</code> in that it can only hold
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