![Joel Thoms 🍻 #JavaScript on Twitter: "💡TIP: filter and then map will loop through the array twice. This may (or may not) have a performance impact. To loop through the list one Joel Thoms 🍻 #JavaScript on Twitter: "💡TIP: filter and then map will loop through the array twice. This may (or may not) have a performance impact. To loop through the list one](https://pbs.twimg.com/media/EHK8M62WoAAUuCt.png)
Joel Thoms 🍻 #JavaScript on Twitter: "💡TIP: filter and then map will loop through the array twice. This may (or may not) have a performance impact. To loop through the list one
![JavaScript — Filter, Map, Reduce. Get started with functional programming | by Adi S | Better Programming JavaScript — Filter, Map, Reduce. Get started with functional programming | by Adi S | Better Programming](https://miro.medium.com/max/1116/1*T9-8hZsOB-ygY9NRxVg0sQ.png)
JavaScript — Filter, Map, Reduce. Get started with functional programming | by Adi S | Better Programming
![Proful Sadangi on Twitter: "Javascript array functions map filter find reduce https://t.co/L3CmRYQMEM" / Twitter Proful Sadangi on Twitter: "Javascript array functions map filter find reduce https://t.co/L3CmRYQMEM" / Twitter](https://pbs.twimg.com/media/EfdJd2zUEAAP8aE.jpg)