Merge pull request #8 from Chalarangelo/master

.github/PULL_REQUEST_TEMPLATE.md

@@ -1,13 +1,19 @@
 <!--- Provide a general summary of your changes in the Title above -->
 
-<!--- Add the prefix [FIX: #(issue number)] or [FEATURE] to the Title -->
+<!--- Add the prefix [FIX: #(issue number)], [FEATURE] or [ENHANCEMENT] to the Title -->
 
 ## Description
 <!--- Describe your changes in detail -->
 **Resolves** #(issue number) <!--- Delete if not a issue fix-->
 
+## What does your PR belong to?
+- [ ] Website
+- [ ] Snippets
+- [ ] General / Things regarding the repository (like CI Integration)
+
 ## Types of changes
 - [ ] Bug fix (non-breaking change which fixes an issue)
+- [ ] Enhancement (non-breaking improvement of a snippet)
 - [ ] New feature (non-breaking change which adds functionality)
 - [ ] Breaking change (fix or feature that would cause existing functionality to change)
 
@@ -16,5 +22,6 @@
 - [ ] My code follows the code style of this project.
 - [ ] My change requires a change to the documentation.
 - [ ] I have updated the documentation accordingly.
+- [ ] I have checked that the changes are working properly
 - [ ] I have checked that there isn't any PR doing the same
 - [ ] I have read the **CONTRIBUTING** document.

snippets/arrayToHtmlList.md

@@ -0,0 +1,10 @@
+### arrayToHtmlList
+
+Converts the given array elements into '<li>' tags and appends them to the list of the given id.
+
+Use `Array.map()` and `document.querySelector()` to create a list of html tags.
+
+```js
+const arrayToHtmlList = (arr, listID) => arr.map(item => document.querySelector("#"+listID).innerHTML+=`<li>${item}</li>`);
+// arrayToHtmlList(['item 1', 'item 2'],'myListID')
+```

snippets/initialize2DArray.md

@@ -0,0 +1,10 @@
+### initialize2DArray
+
+Initializes an 2D array of given width and height and value.
+
+Use `Array.map()` to generate h rows where each is a new array of size w initialize with value. If value is not provided, default to `null`.
+
+```js
+const initialize2DArray = (w, h, val = null) => Array(h).fill().map(() => Array(w).fill(val));
+// initializeArrayWithRange(2, 2, 0) -> [[0,0], [0,0]]
+```

snippets/isArmstrongNumber.md

@@ -0,0 +1,13 @@
+### isArmstrongNumber
+
+Checks if the given number is an armstrong number or not.
+
+Convert the given number into array of digits. Use `Math.pow()` to get the appropriate power for each digit and sum them up. If the sum is equal to the number itself, return `true` otherwise `false`.
+
+```js
+const isArmstrongNumber = digits => 
+  ( arr => arr.reduce( ( a, d ) => a + Math.pow( parseInt( d ), arr.length ), 0 ) == digits ? true : false )( ( digits+'' ).split( '' ) );
+// isArmstrongNumber(1634) -> true
+// isArmstrongNumber(371) -> true
+// isArmstrongNumber(56) -> false
+```

snippets/stringToArrayOfWords.md

@@ -0,0 +1,12 @@
+### stringToArrayOfWords
+
+Converts a given string into an array of words.
+
+Use `String.split()` with a supplied pattern (defaults to non alpha as a regex) to convert to an array of strings. Use `Array.filter()` to remove any empty strings.
+Omit the second argument to use the default regex.
+
+```js
+const stringToArrayOfWords = (str, pattern = /[^a-zA-Z-]+/) => str.split(pattern).filter(Boolean);
+// stringToArrayOfWords("I love javaScript!!") -> ["I", "love", "javaScript"]
+// stringToArrayOfWords("python, javaScript & coffee") -> ["python", "javaScript", "coffee"]
+```

snippets/truthCheckCollection.md

@@ -5,6 +5,6 @@ Checks if the predicate (second argument) is truthy on all elements of a collect
 Use `Array.every()` to check if each passed object has the specified property and if it returns a truthy value.
  
  ```js
-truthCheckCollection = (collection, pre) => (collection.every(obj => obj[pre]));
+const truthCheckCollection = (collection, pre) => (collection.every(obj => obj[pre]));
 // truthCheckCollection([{"user": "Tinky-Winky", "sex": "male"}, {"user": "Dipsy", "sex": "male"}], "sex") -> true
 ```