# StackOverflow love

My first post on hashnode. Many of us depend on StackOverflow for solving day to day minor programming challenges. During these times, over the years, I have come across various gems of code. Let me start with my favorite piece of code I came across for the Javascript/Nodejs developers. 

Filtering unique values in an array, attributed to  [this thread](https://stackoverflow.com/questions/1960473/get-all-unique-values-in-a-javascript-array-remove-duplicates) 

```
myArray.filter((v, i, a) => a.indexOf(v) === i);
``` 

Yes, a lot of users have provided solutions including using the newer `Set` syntax. But I love the simplicity and power of the above one liner. Typically, while we know the `filter` method allows three arguments (`value`, `index` and `array`), we usually use only the `value` parameter and occasionally the `index` parameter. The brilliant use of the third `array` parameter to achieve uniqueness is what I love about this.