make min max average and sum snippets

snippets/arrayAverage.md

@@ -1,13 +0,0 @@
-### arrayAverage
-
-Returns the average of an array of numbers.
-
-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 arrayAverage = arr => arr.reduce((acc, val) => acc + val, 0) / arr.length;
-```
-
-```js
-arrayAverage([1, 2, 3]); // 2
-```

snippets/arrayMax.md

@@ -1,13 +0,0 @@
-### arrayMax
-
-Returns the maximum value in an array.
-
-Use `Math.max()` combined with the spread operator (`...`) to get the maximum value in the array.
-
-```js
-const arrayMax = arr => Math.max(...arr);
-```
-
-```js
-arrayMax([10, 1, 5]); // 10
-```

snippets/arraySum.md

@@ -1,13 +0,0 @@
-### arraySum
-
-Returns the sum of an array of numbers.
-
-Use `Array.reduce()` to add each value to an accumulator, initialized with a value of `0`.
-
-```js
-const arraySum = arr => arr.reduce((acc, val) => acc + val, 0);
-```
-
-```js
-arraySum([1, 2, 3, 4]); // 10
-```

snippets/average.md

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+### average
+
+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;
+```
+
+```js
+average([1, 2, 3]); // 2
+```

snippets/max.md

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+### max
+
+Returns the maximum value out of two or more numbers/arrays.
+
+Use `Math.max()` combined with the spread operator (`...`) to get the maximum value in the array.
+
+```js
+const max = (...arr) => Math.max(...[].concat(...arr);
+```
+
+```js
+max([10, 1, 5]); // 10
+```

snippets/min.md

@@ -1,13 +1,13 @@
-### arrayMin
+### min
 
 Returns the minimum value in an array.
 
 Use `Math.min()` combined with the spread operator (`...`) to get the minimum value in the array.
 
 ```js
-const arrayMin = arr => Math.min(...arr);
+const min = arr => Math.min(...[].concat(...arr));
 ```
 
 ```js
-arrayMin([10, 1, 5]); // 1
+min([10, 1, 5]); // 1
 ```

snippets/sum.md

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+### sum
+
+Returns the sum of an of two or more numbers/arrays.
+
+Use `Array.reduce()` to add each value to an accumulator, initialized with a value of `0`.
+
+```js
+const sum = (...arr) => [].concat(...arr).reduce((acc, val) => acc + val, 0);
+```
+
+```js
+sum([1, 2, 3, 4]); // 10
+```