Travis build: 1012

docs/about.html

@@ -339,6 +339,7 @@
 <li><a tags="math,beginner,intermediate" href="./math#isprime">isPrime</a></li>
 <li><a tags="math,recursion,beginner" href="./math#lcm">lcm</a></li>
 <li><a tags="math,utility,advanced" href="./math#luhncheck">luhnCheck</a></li>
+<li><a tags="math,beginner" href="./math#mapnumrange">mapNumRange</a></li>
 <li><a tags="math,array,function,beginner" href="./math#maxby">maxBy</a></li>
 <li><a tags="math,array,intermediate" href="./math#median">median</a></li>
 <li><a tags="math,array,beginner" href="./math#midpoint">midpoint</a></li>

docs/contributing.html

@@ -339,6 +339,7 @@
 <li><a tags="math,beginner,intermediate" href="./math#isprime">isPrime</a></li>
 <li><a tags="math,recursion,beginner" href="./math#lcm">lcm</a></li>
 <li><a tags="math,utility,advanced" href="./math#luhncheck">luhnCheck</a></li>
+<li><a tags="math,beginner" href="./math#mapnumrange">mapNumRange</a></li>
 <li><a tags="math,array,function,beginner" href="./math#maxby">maxBy</a></li>
 <li><a tags="math,array,intermediate" href="./math#median">median</a></li>
 <li><a tags="math,array,beginner" href="./math#midpoint">midpoint</a></li>

snippets/deepMapKeys.md

@@ -8,17 +8,16 @@ Use `Object.keys(obj)` to iterate over the object's keys.
 Use `Array.prototype.reduce()` to create a new object with the same values and mapped keys using `fn`.
 
 ```js
-
 const deepMapKeys = (obj, f) =>
   Array.isArray(obj)
     ? obj.map(val => deepMapKeys(val, f))
     : typeof obj === 'object'
       ? Object.keys(obj).reduce((acc, current) => {
-        const val = obj[current];
-        acc[f(current)] =
+          const val = obj[current];
+          acc[f(current)] =
             val !== null && typeof val === 'object' ? deepMapKeys(val, f) : (acc[f(current)] = val);
-        return acc;
-      }, {})
+          return acc;
+        }, {})
       : obj;
 ```
 

snippets/dig.md

@@ -6,14 +6,13 @@ Use the `in` operator to check if `target` exists in `obj`.
 If found, return the value of `obj[target]`, otherwise use `Object.values(obj)` and `Array.prototype.reduce()` to recursively call `dig` on each nested object until the first matching key/value pair is found.
 
 ```js
-
 const dig = (obj, target) =>
   target in obj
     ? obj[target]
     : Object.values(obj).reduce((acc, val) => {
-      if (acc !== undefined) return acc;
-      if (typeof val === 'object') return dig(val, target);
-    }, undefined);
+        if (acc !== undefined) return acc;
+        if (typeof val === 'object') return dig(val, target);
+      }, undefined);
 ```
 
 ```js

snippets/factorial.md

@@ -8,12 +8,11 @@ Otherwise, return the product of `n` and the factorial of `n - 1`.
 Throws an exception if `n` is a negative number.
 
 ```js
-
 const factorial = n =>
   n < 0
     ? (() => {
-      throw new TypeError('Negative numbers are not allowed!');
-    })()
+        throw new TypeError('Negative numbers are not allowed!');
+      })()
     : n <= 1
       ? 1
       : n * factorial(n - 1);

snippets/mapNumRange.md

@@ -5,9 +5,11 @@ Maps a number from one range to another range.
 Returns `num` mapped between `outMin`-`outMax` from `inMin`-`inMax`.
 
 ```js
-const mapNumRange = (num, inMin, inMax, outMin, outMax) => (num - inMin) * (outMax - outMin) / (inMax - inMin) + outMin;
+const mapNumRange = (num, inMin, inMax, outMin, outMax) =>
+  ((num - inMin) * (outMax - outMin)) / (inMax - inMin) + outMin;
 ```
 
 ```js
-mapNumRange(5,0,10,0,100); // 50
+
+mapNumRange(5, 0, 10, 0, 100); // 50
 ```

snippets/pipeAsyncFunctions.md

@@ -11,14 +11,13 @@ const pipeAsyncFunctions = (...fns) => arg => fns.reduce((p, f) => p.then(f), Pr
 ```
 
 ```js
-
 const sum = pipeAsyncFunctions(
   x => x + 1,
   x => new Promise(resolve => setTimeout(() => resolve(x + 2), 1000)),
   x => x + 3,
   async x => (await x) + 4
 );
-(async() => {
+(async () => {
   console.log(await sum(5)); // 15 (after one second)
 })();
 ```

snippets/remove.md

@@ -6,13 +6,12 @@ Use `Array.prototype.filter()` to find array elements that return truthy values
 The `func` is invoked with three arguments (`value, index, array`).
 
 ```js
-
 const remove = (arr, func) =>
   Array.isArray(arr)
     ? arr.filter(func).reduce((acc, val) => {
-      arr.splice(arr.indexOf(val), 1);
-      return acc.concat(val);
-    }, [])
+        arr.splice(arr.indexOf(val), 1);
+        return acc.concat(val);
+      }, [])
     : [];
 ```