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Added a Basic Code Solution to "False Bouncer" challenge (#34858)

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* Added a Basic Code Solution

I have also provided the Code Explanation and Relevant Links.

* Added 3 backticks to code

Co-Authored-By: merkur0 <ondramerkun123@gmail.com>

* Added 3 backticks here too

Co-Authored-By: merkur0 <ondramerkun123@gmail.com>

* Removed deprecated part of text

Co-Authored-By: merkur0 <ondramerkun123@gmail.com>

* fix: reformatted links and add closing backticks
This commit is contained in:
merkur0
2019-03-01 01:39:56 +01:00
committed by Randell Dawson
parent 0890dda962
commit 5665222c70
1 changed files with 30 additions and 3 deletions
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33
guide/english/certifications/javascript-algorithms-and-data-structures/basic-algorithm-scripting/falsy-bouncer/index.md
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@ -37,12 +37,40 @@ Then we need to add a `filter()` with the falsy values function...
**Solution ahead!**
## ![:rotating_light:](https://forum.freecodecamp.com/images/emoji/emoji_one/rotating_light.png?v=3 ":rotating_light:") Advanced Code Solution:
## ![:beginner:](https://forum.freecodecamp.com/images/emoji/emoji_one/beginner.png?v=3 ":beginner:") Basic Code Solution:
```js
function bouncer(arr) {
let newArray = [];
for (var i = 0; i < arr.length; i++){
if (arr[i])
newArray.push(arr[i]);
}
return newArray;
}
```
![:rocket:](https://forum.freecodecamp.com/images/emoji/emoji_one/rocket.png?v=3 ":rocket:") <a href='https://repl.it/repls/WarmPlainWebportal' target='_blank' rel='nofollow'>Run Code</a>
### Code Explanation:
We create a new empty array.
We use a for cycle to iterate over all elements of the provided array (arr).
We use the if statement to check if the current element is <a href='http://forum.freecodecamp.com/t/javascript-truthy-value/15975' target='_blank' rel='nofollow'>truthy</a> or <a href='https://guide.freecodecamp.org/javascript/falsy-values/' target='_blank' rel='nofollow'>falsy</a>.
If the element is truthy, we push it to the new array (newArray). This result in the new array (newArray) containing only truthy elements.
We return the new array (newArray).
#### Relevant Links
* [Boolean](https://forum.freecodecamp.com/t/javascript-boolean/14311)
* [Truthy value](https://forum.freecodecamp.com/t/javascript-truthy-value/15975)
* [Falsey values](https://www.freecodecamp.org/forum/t/javascript-falsy-values/14664)
* [Array.prototype.push](https://www.freecodecamp.org/forum/t/javascript-array-prototype-push/14298)
## ![:rotating_light:](https://forum.freecodecamp.com/images/emoji/emoji_one/rotating_light.png?v=3 ":rotating_light:") Advanced Code Solution:
```js
function bouncer(arr) {
return arr.filter(Boolean);
}
```
![:rocket:](https://forum.freecodecamp.com/images/emoji/emoji_one/rocket.png?v=3 ":rocket:") <a href='https://repl.it/CLjU/32' target='_blank' rel='nofollow'>Run Code</a>
### Code Explanation:
@ -59,7 +87,6 @@ The `Array.prototype.filter` method expects a function that returns a `Boolean`
If you found this page useful, you can give thanks by copying and pasting this on the main chat:
**`Thanks @renelis @abhisekp @Rafase282 for your help with Algorithm: Falsy Bouncer`**
## ![:clipboard:](https://forum.freecodecamp.com/images/emoji/emoji_one/clipboard.png?v=3 ":clipboard:") NOTES FOR CONTRIBUTIONS: