Programming

Draw a random number on the chart on every turn of the loop. This tutorial is part of the Nairda learning path. You can build it step by step inside the app, which checks every block you place before letting you move on. The steps We add a While loop, which repeats forever. We create a number variable called number. Inside the loop we wait 500 milliseconds. Behind it we set number to a random value from 0 to 100. On the dashboard we draw a chart and give it the variable number. When you finish, the app takes you straight to the next tutorial in the path. ...

Draw a label on the dashboard and write hello world in it. This tutorial is part of the Nairda learning path. You can build it step by step inside the app, which checks every block you place before letting you move on. The steps We add a While loop, which repeats forever. On the dashboard we draw a label. We change the label text to hello world. When you finish, the app takes you straight to the next tutorial in the path. ...

Change what the program does depending on the value of a state variable. This tutorial is part of the Nairda learning path. You can build it step by step inside the app, which checks every block you place before letting you move on. The steps We add a While loop, which repeats forever. We create a number variable called state. We create another number variable called output. Inside the loop we put an If with a comparison. That If asks whether state is 1. If state is 1, output becomes 20. Above it we put a second If, with its own comparison. That other If asks whether state is 0. If state is 0, output becomes 10. On the dashboard we put a slider to move the state. And a label with output, which changes with the state. When you finish, the app takes you straight to the next tutorial in the path. ...

Put hello world into a text variable and show it in a terminal. This tutorial is part of the Nairda learning path. You can build it step by step inside the app, which checks every block you place before letting you move on. The steps We add a While loop, which repeats forever. We create a text variable called text with the value hello world. On the dashboard we draw a terminal and give it the variable text. When you finish, the app takes you straight to the next tutorial in the path. ...

Add a row to a table, write a number into it and read it back. This tutorial is part of the Nairda learning path. You can build it step by step inside the app, which checks every block you place before letting you move on. The steps We create a table called data. We create a number variable called stored. We add a row to the table, so there is somewhere to save. Behind it we write the number 7 into that cell of the table. We add a While loop, which repeats forever. Inside the loop we set stored to what is in the table. On the dashboard we draw a label and give it the variable stored. When you finish, the app takes you straight to the next tutorial in the path. ...

Write the five times table into a terminal using the Repeat loop. This tutorial is part of the Nairda learning path. You can build it step by step inside the app, which checks every block you place before letting you move on. The steps We add a Repeat loop and ask it for 10 turns. We create a number variable called n. We create a text variable called line. Inside the Repeat we set n to a sum. The sum is n plus 5, so n moves five at a time. Behind it we put Join to write n into line. On the dashboard we draw a terminal and give it the variable line. When you finish, the app takes you straight to the next tutorial in the path. ...

Write the conversion formula by nesting arithmetic blocks inside each other. This tutorial is part of the Nairda learning path. You can build it step by step inside the app, which checks every block you place before letting you move on. The steps We add a While loop, which repeats forever. We create a text variable called terminal. We create a number variable called reading. Above the loop we read a number from the terminal with Wait. Behind it we join a sum to the terminal, which starts with 32. Inside that sum we put a division by 5. And inside the division, a multiplication by 9. What gets multiplied is the variable reading. On the dashboard we draw a terminal and give it the variable terminal. When you finish, the app takes you straight to the next tutorial in the path. ...

Create a number variable, set it to a value and show it on a label. This tutorial is part of the Nairda learning path. You can build it step by step inside the app, which checks every block you place before letting you move on. The steps We add a While loop, which repeats forever. We create a number variable called counter. Above the loop we set the variable to 100. On the dashboard we draw a label. We change the label text to counter. And we drag the variable counter onto the label. When you finish, the app takes you straight to the next tutorial in the path. ...

Add rows with Repeat and watch the table grow with the Height block. This tutorial is part of the Nairda learning path. You can build it step by step inside the app, which checks every block you place before letting you move on. The steps We create a table called data. We create a number variable called rows. We add a Repeat loop and ask it for 3 turns. Inside the Repeat we add a row to the table. Behind it we set rows to the Height of the table, which counts how many there are. On the dashboard we draw a label and give it the variable rows. When you finish, the app takes you straight to the next tutorial in the path. ...

Convert temperatures with the Map block instead of writing the formula. This tutorial is part of the Nairda learning path. You can build it step by step inside the app, which checks every block you place before letting you move on. The steps We add a While loop, which repeats forever. We create a text variable called terminal. We create a number variable called reading. Above the loop we read a number from the terminal with Wait. Behind it we join a Map block to the terminal. What we map is the variable reading. It comes in from 32 to 212 Fahrenheit and goes out from 0 to 100 Celsius. On the dashboard we draw a terminal and give it the variable terminal. When you finish, the app takes you straight to the next tutorial in the path. ...