moving out outdated js docs

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# looper challenges
Coding challenges for the looper tutorial. #docs
## Before we get started
Complete the following guided tutorial:
* [tutorial](/lessons/looper/tutorial)
At the end of the tutorial, click `keep editing`. Your code should look like this:
```
for (let i = 0; i < 6; i++) {
basic.showNumber(i, 150)
basic.pause(2000)
}
```
### Challenge 1
### @video td/videos/looper-1
What if we want to count up to lucky number 7 instead? Let's do that by changing the ending value to `8` instead of `6`.
```
for (let i1 = 0; i1 < 8; i1++) {
basic.showNumber(i1, 150) // ***
basic.pause(2000)
}
```
* Run the program now to see your changes.
### Challenge 2
### @video td/videos/looper-2
What about 9? Let's do that by changing the ending value to `10`.
```
for (let i2 = 0; i2 < 10; i2++) {
basic.showNumber(i2, 150)
basic.pause(2000)
}
```
* Run your code to see the new counter.
### Challenge 3
### @video td/videos/looper-3
Now let's start counting from `3` instead! Our for loop will always start at `0` so we simply add `3` to the `i` variable when passing it to `basic->show number`.
```
for (let i3 = 0; i3 < 8; i3++) {
basic.showNumber(i3 + 3, 150) // ***
basic.pause(2000)
}
```
Run it on the simulator!
### Challenge 4
### @video td/videos/looper-4
Now, let's **count down from 9**. Change the line `basic->show number(i + 3, 150)` to `basic->show number(9 - i, 150)`.
```
for (let i4 = 0; i4 < 10; i4++) {
basic.showNumber(9 - i4, 150) // ***
basic.pause(2000)
}
```
* Run the code to make sure it is doing what is expected.
### Challenge 5
After counting down from `9` let's show the string `BOOOM`!

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# looper lesson
Learn to control blinking LEDs.
### @video vimeo/134453504
## Topic
For loop - Blinking LED
## Quick links
* [tutorial](/lessons/looper/tutorial)
* [quiz](/lessons/looper/quiz)
* [quiz answers](/lessons/looper/quiz-answers)
* [challenges](/lessons/looper/challenges)
## Class
Year 7
## Prior learning/place of lesson in scheme of work
Learn how to control a blinking LED. We will be learning how to create a blinking app using the for loop as well as simple commands, such as plot and pause.
## What the teacher needs to know
**Program:** A stored set of instructions encoded in a language understood by the computer that does some form of computation, processing input and/or stored data to generate output.**
**Algorithm:** An unambiguous set of rules or a precise step-by-step guide to solve a problem or achieve a particular objective. The guided tutorial follows a algorithm and is a precise step-by-step guide to solve a problem**
**Loop:** A block of code repeated automatically under the programs control. ** The blink program introduces a While Loop. While Loop is a while loop that will repeat code forever while - true.
**Command:** An instruction for the computer to execute, written in a particular programming language.**
**QuickStart Computing Glossary
## Documentation
* **plot**: [read more...](/reference/led/plot)
* **pause**: [read more...](/reference/basic/pause)
* **for**: [read more...](/reference/loops/for)
## Resources
* Activity: [tutorial](/lessons/looper/tutorial)
* Activity: [quiz](/lessons/looper/quiz)
* Extended Activity: [challenges](/lessons/looper/challenges)
## Objectives
* learn how to blink a light
* create a for loop that will loop through each x-value, y-value from 0 to 4.
* learn how to pause the light on and off
* learn how to repeat turning on and off the light
## Links to the National Curriculum Programmes of Study for Computing
## Progression Pathways / Computational Thinking Framework
#### Algorithms
* Uses logical reasoning to predict outputs, showing an awareness of inputs. (AL)
* Understands that iteration is the repetition of a process such as a loop. (AL)
* Represents solutions using a structured notation. (AL) (AB)
#### Programming & Development
* Creates programs that implement algorithms to achieve given goals. (AL)
* Uses a variable and relational operators within a loop to govern termination. (AL) (GE)
* Uses a range of operators and expressions e.g. Boolean, and applies them in the context of program control. (AL)
#### Data & Data Representation
* Understands the difference between data and information. (AB)
* Defines data types: real numbers and Boolean. (AB)
#### Information Technology
* Collects, organises and presents data and information in digital content. (AB)
* Makes appropriate improvements to solutions based on feedback received, and can comment on the success of the solution. (EV)
Computational Thinking Concept: AB = Abstraction; DE = Decomposition; AL = Algorithmic Thinking; EV = Evaluation; GE = Generalisation
## Activity
* time: 10 min.
* [tutorial](/lessons/looper/tutorial)
* [quiz](/lessons/looper/quiz)
* assessment opportunities: loops, plot, pause, clear screen
## Extended Activity
* time: 20 min.
* [challenges](/lessons/looper/challenges)
* assessment opportunities: loops, plot, pause, clear screen
## Homework
* Extended Activity: [challenges](/lessons/looper/challenges)
## Intended follow on
Publish script to the classroom.