filters questions and readme

subjects/ascii-art-web/ascii-art-web-export-file.audit.en.md

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 #### Functional
 
-
 ##### Try to export the file.
 ###### Does the exported file matches the output?
 

subjects/groupie-trackers/groupie-trackers-filters.audit.en.md

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+#### Functional
+
+###### Does the project have a filter for the creation date?
+###### Does the project have a filter for the first album date?
+###### Does the project have a filter for the number of members?
+###### Does the project have a filter for the locations of concerts?
+
+###### Does the project have a range [filter](https://dribbble.com/shots/1751801-Ui-Elements-Social-Network-Analytics/attachments/284260)?
+
+###### Does the project have a check box [filter](https://dribbble.com/shots/1751801-Ui-Elements-Social-Network-Analytics/attachments/284260)?
+
+##### Try to filter the artists/bands which the creation date is between `"1990"` and `"2000"`. 
+###### Did it appear  as a result SOJA, Mamonas Assassinas, Thirty Seconds to Mars, Nickleback, NWA, Gorillaz, Linkin Park, Eminem  and Coldplay?
+
+##### Try to filter the artists/bands that recorded their first album between `"1990"` and `"1992"`.
+###### Did it appear as a result Pearl Jam and Red Hot Chili Peppers?"
+
+##### Try to filter the artists/bands that have exactly `"6"` members in their band.
+###### Did it appear as a result Pink Floyd, Arctic Monkeys, Linkin Park and Foo Fighters?
+
+##### Try to filter the artists/bands that have/had concerts in `"Texas, USA"`.
+###### Did it appear as a result R3HAB, Logic, Joyner Lucas and Twenty One Pilots?
+
+##### Try to filter the artists/bands which the creation date is between `"1970"` and `"2000"` and have only `"1"` member (solo artists).
+###### Did it appear as a result Bobby McFerrins and Eminem?
+
+##### Try to filter the artists/bands which the creation date is and recorded their first album after `"2010"`.
+###### Did it appear as a result XXXTentacion, Juice Wrld, Alec Benjamin and Post Malone?
+
+##### Try to filter the artists/bands that have/had concerts in `"Washington, USA"` and have more than 3 members.
+###### Did it appear as a result The Rolling Stones?
+
+##### Try to filter the artists/bands that recorded their first album between `"1980"` and `"1990"` and have a maximum of `"4"` members.
+###### Did it appear as a result Phll Collins, Bobby McFerrins, Red Hot Chili Peppers and Metallica?
+
+###### Can you filter so that all the artists/bands are all shown?
+
+#### General
+
+###### +Does the result of the filters change while you are changing the filters (is it synchronous)?·2
+
+#### Basic
+
+###### +Does the code obey the [good practices](https://github.com/01-edu/public/blob/master/subjects/good-practices.en.md)?
+###### +Are the instructions in the website clear?
+
+#### Social
+
+###### +Did you learn anything from this project?
+###### +Would you recommend/nominate this program as an example for the rest of the school?

subjects/groupie-trackers/groupie-trackers-filters.en.md

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+## groupie-trackers-filters
+
+### Objectives
+
+You must follow the same [principles](https://github.com/01-edu/public/blob/master/subjects/groupie-trackers/groupie-trackers.en.md) as the first subject.
+
+- Groupie Trackers Filters consists on letting the user filter the artists/bands that will be shown.
+
+- Your project must incorporate at least these four filters:
+  - filter by creation date
+  - filter by first album date
+  - filter by number of members
+  - filter by locations of concerts
+
+
+- You must use at least these two types of filters:
+  - a range filter
+  - a check box filter
+
+This project will help you learn about:
+
+- Manipulation, display and storage of data
+- Event creation and display
+- JSON files and format
+- Go routines
+
+### Hints
+
+- You have to pay attention to the locations. For example Seattle, Washington, USA **is part of** Washington, USA.
+
+### Instructions
+
+- The backend must be written in **Go**.
+- You must handle website errors.
+- The code must respect the [good practices](https://github.com/01-edu/public/blob/master/subjects/good-practices.en.md)