Update snippet descriptions

snippets/average.md

@@ -5,7 +5,8 @@ tags: math,array,beginner
 
 Calculates the average of two or more numbers.
 
-- Use `Array.prototype.reduce()` to add each value to an accumulator, initialized with a value of `0`, divide by the `length` of the array.
+- Use `Array.prototype.reduce()` to add each value to an accumulator, initialized with a value of `0`.
+- Divide the resulting array by its length.
 
 ```js
 const average = (...nums) => nums.reduce((acc, val) => acc + val, 0) / nums.length;

snippets/averageBy.md

@@ -6,12 +6,14 @@ tags: math,array,intermediate
 Calculates the average of an array, after mapping each element to a value using the provided function.
 
 - Use `Array.prototype.map()` to map each element to the value returned by `fn`.
-- Use `Array.prototype.reduce()` to add each value to an accumulator, initialized with a value of `0`, divide by the `length` of the array.
+- Use `Array.prototype.reduce()` to add each value to an accumulator, initialized with a value of `0`.
+- Divide the resulting array by its length.
 
 ```js
 const averageBy = (arr, fn) =>
-  arr.map(typeof fn === 'function' ? fn : val => val[fn]).reduce((acc, val) => acc + val, 0) /
+  arr
-  arr.length;
+    .map(typeof fn === 'function' ? fn : val => val[fn])
+    .reduce((acc, val) => acc + val, 0) / arr.length;
 ```
 
 ```js

snippets/deepClone.md

@@ -1,6 +1,6 @@
 ---
 title: deepClone
-tags: object,recursion,intermediate
+tags: object,recursion,advanced
 ---
 
 Creates a deep clone of an object. 

snippets/longestItem.md

@@ -5,7 +5,7 @@ tags: array,intermediate
 
 Takes any number of iterable objects or objects with a `length` property and returns the longest one.
 
-- Use `Array.prototype.reduce()`, comparing the `length` of objects to find the longest one.
+- Use `Array.prototype.reduce()`, comparing the length of objects to find the longest one.
 - If multiple objects have the same length, the first one will be returned.
 - Returns `undefined` if no arguments are provided.
 

snippets/objectToQueryString.md

@@ -6,7 +6,7 @@ tags: object,intermediate
 Returns a query string generated from the key-value pairs of the given object.
 
 - Use `Array.prototype.reduce()` on `Object.entries(queryParameters)` to create the query string.
-- Determine the `symbol` to be either `?` or `&` based on the `length` of `queryString` and concatenate `val` to `queryString` only if it's a string.
+- Determine the `symbol` to be either `?` or `&` based on the length of `queryString` and concatenate `val` to `queryString` only if it's a string.
 - Return the `queryString` or an empty string when the `queryParameters` are falsy.
 
 ```js

snippets/permutations.md

@@ -8,7 +8,7 @@ Generates all permutations of an array's elements (contains duplicates).
 - Use recursion.
 - For each element in the given array, create all the partial permutations for the rest of its elements.
 - Use `Array.prototype.map()` to combine the element with each partial permutation, then `Array.prototype.reduce()` to combine all permutations in one array.
-- Base cases are for array `length` equal to `2` or `1`.
+- Base cases are for `Array.prototype.length` equal to `2` or `1`.
 - ⚠️ **WARNING**: This function's execution time increases exponentially with each array element. Anything more than 8 to 10 entries will cause your browser to hang as it tries to solve all the different combinations.
 
 ```js

snippets/sample.md

@@ -5,7 +5,8 @@ tags: array,random,beginner
 
 Returns a random element from an array.
 
-- Use `Math.random()` to generate a random number, multiply it by `length` and round it off to the nearest whole number using `Math.floor()`.
+- Use `Math.random()` to generate a random number.
+- Multiply it by `Array.prototype.length` and round it off to the nearest whole number using `Math.floor()`.
 - This method also works with strings.
 
 ```js

snippets/size.md

@@ -6,7 +6,7 @@ tags: object,array,string,intermediate
 Gets the size of an array, object or string.
 
 - Get type of `val` (`array`, `object` or `string`).
-- Use `length` property for arrays.
+- Use `Array.prototype.length` property for arrays.
 - Use `length` or `size` value if available or number of keys for objects.
 - Use `size` of a [`Blob` object](https://developer.mozilla.org/en-US/docs/Web/API/Blob) created from `val` for strings.
 - Split strings into array of characters with `split('')` and return its length.

snippets/stringPermutations.md

@@ -8,7 +8,7 @@ Generates all permutations of a string (contains duplicates).
 - Use recursion.
 - For each letter in the given string, create all the partial permutations for the rest of its letters.
 - Use `Array.prototype.map()` to combine the letter with each partial permutation, then `Array.prototype.reduce()` to combine all permutations in one array.
-- Base cases are for string `length` equal to `2` or `1`.
+- Base cases are for `String.prototype.length` equal to `2` or `1`.
 - ⚠️ **WARNING**: This function's execution time increases exponentially with each character. Anything more than 8 to 10 characters will cause your browser to hang as it tries to solve all the different combinations.
 
 ```js

snippets/truncateString.md

@@ -5,7 +5,7 @@ tags: string,beginner
 
 Truncates a string up to a specified length.
 
-- Determine if the string's `length` is greater than `num`.
+- Determine if `String.prototype.length` is greater than `num`.
 - Return the string truncated to the desired length, with `'...'` appended to the end or the original string.
 
 ```js

snippets/truncateStringAtWhitespace.md

@@ -5,7 +5,7 @@ tags: string,intermediate
 
 Truncates a string up to specified length, respecting whitespace when possible.
 
-- Determine if the string's `length` is greater or equal to `lim`. If not, return it as-is.
+- Determine if `String.prototype.length` is greater or equal to `lim`. If not, return it as-is.
 - Use `String.prototype.slice()` and `String.prototype.lastIndexOf()` to find the index of the last space below the desired `lim`.
 - Use `String.prototype.slice()` to appropriately truncate `str` based on `lastSpace`, respecting whitespace if possible and appending `ending` at the end.
 - Omit the third argument, `ending`, to use the default ending of `'...'`.