What are all the possibilities? 
Lang: JavaScript
<pre><code>if (x &gt; 5) {
 /* do the right thing */
} else if (x &gt; 50) {
 /* do the right thing */
} else {
 /* do the right thing */
}
</code></pre>

What are all the possibilities? 

Lang: JavaScript

```
if (x > 5) {
 /* do the right thing */
} else if (x > 50) {
 /* do the right thing */
} else {
 /* do the right thing */
}
```

your else..if block (the middle one) will never run, because you already check if x&gt;5 in the first clause, so x will never be &gt;50 after the first else. As a result, you could only re-write the if..else blocks with ternary operators. You might want to correct that clause, then there are more (mathematical) ways to describe the conditions.
<pre><code>x &gt; 5
 ? // ...
 : x &gt; 50
 ? // ...
 : // ...
;
</code></pre>

your else..if block (the middle one) will never run, because you already check if x>5 in the first clause, so x will never be >50 after the first else. As a result, you could only re-write the if..else blocks with ternary operators. You might want to correct that clause, then there are more (mathematical) ways to describe the conditions.

```
x > 5
  ? // ...
  : x > 50
    ? // ...
    : // ...
;
```

In how many ways can we implement the following if and else code? Forget optimisation.

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