update description of head & ran npm run build-list
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@ -57,7 +57,7 @@
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* [Random integer in range](#random-integer-in-range)
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* [Random integer in range](#random-integer-in-range)
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* [Random number in range](#random-number-in-range)
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* [Random number in range](#random-number-in-range)
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* [Randomize order of array](#randomize-order-of-array)
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* [Randomize order of array](#randomize-order-of-array)
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* [Redirect to URL](#redirect-to-url)
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* [Redirect to url](#redirect-to-url)
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* [Reverse a string](#reverse-a-string)
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* [Reverse a string](#reverse-a-string)
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* [RGB to hexadecimal](#rgb-to-hexadecimal)
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* [RGB to hexadecimal](#rgb-to-hexadecimal)
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* [Run promises in series](#run-promises-in-series)
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* [Run promises in series](#run-promises-in-series)
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@ -395,7 +395,7 @@ const hammingDistance = (num1, num2) =>
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### Head of list
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### Head of list
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Return `arr[0]`.
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Use `arr[0]` to return the first element of the passed array.
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```js
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```js
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const head = arr => arr[0];
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const head = arr => arr[0];
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@ -1,6 +1,6 @@
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### Head of list
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### Head of list
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Return `arr[0]`.
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Use `arr[0]` to return the first element of the passed array.
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```js
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```js
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const head = arr => arr[0];
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const head = arr => arr[0];
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