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2017-12-29 14:43:26 +00:00
parent 6bbb0d32b6
commit 3782c6e3a0
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6
README.md
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@ -2142,7 +2142,10 @@ Returns the average of an of two or more numbers/arrays.
Use `Array.reduce()` to add each value to an accumulator, initialized with a value of `0`, divide by the `length` of the array.
```js
const average = (...arr) => [].concat(...arr).reduce((acc, val) => acc + val, 0) / arr.length;
const average = (...arr) => {
const nums = [].concat(...arr);
return nums.reduce((acc, val) => acc + val, 0) / nums.length;
};
```
<details>
@ -2150,6 +2153,7 @@ const average = (...arr) => [].concat(...arr).reduce((acc, val) => acc + val, 0)
```js
average([1, 2, 3]); // 2
average(1, 2, 3); // 2
```
</details>

6
docs/index.html
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@ -407,8 +407,12 @@ runPromisesInSeries([() =&gt; delay(1000), () =&gt; delay(2000)]); // //executes
</code></pre></div></div><br/><h2 style="text-align:center">Logic</h2><div class="card fluid"><div class="section double-padded"><h3 id="negate">negate</h3></div><div class="section double-padded"><p>Negates a predicate function.</p><p>Take a predicate function and apply <code>not</code> to it with its arguments.</p><pre><code class="language-js">const negate = func =&gt; (...args) =&gt; !func(...args);
</code></pre><pre><code class="language-js">filter([1, 2, 3, 4, 5, 6], negate(isEven)); // [1, 3, 5]
negate(isOdd)(1); // false
</code></pre></div></div><br/><h2 style="text-align:center">Math</h2><div class="card fluid"><div class="section double-padded"><h3 id="average">average</h3></div><div class="section double-padded"><p>Returns the average of an of two or more numbers/arrays.</p><p>Use <code>Array.reduce()</code> to add each value to an accumulator, initialized with a value of <code>0</code>, divide by the <code>length</code> of the array.</p><pre><code class="language-js">const average = (...arr) =&gt; [].concat(...arr).reduce((acc, val) =&gt; acc + val, 0) / arr.length;
</code></pre></div></div><br/><h2 style="text-align:center">Math</h2><div class="card fluid"><div class="section double-padded"><h3 id="average">average</h3></div><div class="section double-padded"><p>Returns the average of an of two or more numbers/arrays.</p><p>Use <code>Array.reduce()</code> to add each value to an accumulator, initialized with a value of <code>0</code>, divide by the <code>length</code> of the array.</p><pre><code class="language-js">const average = (...arr) =&gt; {
const nums = [].concat(...arr);
return nums.reduce((acc, val) =&gt; acc + val, 0) / nums.length;
};
</code></pre><pre><code class="language-js">average([1, 2, 3]); // 2
average(1, 2, 3); // 2
</code></pre></div></div><br/><div class="card fluid"><div class="section double-padded"><h3 id="clampnumber">clampNumber</h3></div><div class="section double-padded"><p>Clamps <code>num</code> within the inclusive range specified by the boundary values <code>a</code> and <code>b</code>.</p><p>If <code>num</code> falls within the range, return <code>num</code>. Otherwise, return the nearest number in the range.</p><pre><code class="language-js">const clampNumber = (num, a, b) =&gt; Math.max(Math.min(num, Math.max(a, b)), Math.min(a, b));
</code></pre><pre><code class="language-js">clampNumber(2, 3, 5); // 3
clampNumber(1, -1, -5); // -1