159 lines
1.8 KiB
Markdown
159 lines
1.8 KiB
Markdown
# Reference
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## micro:bit
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```namespaces
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basic.showString("Hello!");
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input.onButtonPressed(Button.A, () => {});
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led.plot(0,0);
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radio.sendNumber(0);
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music.playTone(music.noteFrequency(Note.C), music.beat(BeatFraction.Whole));
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game.createSprite();
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pins.digitalReadPin(DigitalPin.P0);
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serial.WriteLine("Hello!")
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control.inBackground(() => {});
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```
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## Language
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### @section full
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### ~column
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### Loops
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[for](/microbit/reference/loops/for)
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```block
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for(let i = 0;i<5;i++) {}
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```
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[repeat](/microbit/reference/loops/repeat)
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[while](/microbit/reference/loops/while)
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```block
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while(true) {}
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```
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[forever](/microbit/reference/basic/forever)
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```block
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basic.forever(() => {})
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```
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### ~
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### ~column
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### Logic
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[if](/microbit/reference/logic/if)
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```block
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if(false) {
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}
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```
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[Boolean](/microbit/reference/types/boolean) values: *true*; *false*
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```block
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true
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false
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```
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Boolean binary operators: *and* (conjunction); *or* (disjunction)
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```block
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true && false;
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true || false;
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```
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Boolean negation operator
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```block
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!true
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```
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Comparison operators (=, !=, <, >, <=, >=)
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```block
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0 == 0;
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1 !- 0;
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0 < 1;
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1 > 0;
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0 <= 1;
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1 >= 0;
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```
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### Variables
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[Assign](/microbit/reference/variables/assign) (set) a variable's value
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```block
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let x = 0;
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```
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Get a variable's value
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```block
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let x = 0;
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x;
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```
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[Change](/microbit/reference/variables/change-var) a variable's value
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```block
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let x = 0;
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x+=1;
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```
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### ~
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### ~column
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### Math
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[Numeric](/microbit/reference/types/number) values: 0, 1, 2, ...
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```block
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0;
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1;
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2;
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```
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Arithmetic binary operation (+, -, *, /)
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```block
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0+1;
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0-1;
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1*2;
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3/4;
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```
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Absolute value
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```block
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Math.abs(-5);
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```
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Minimum/maximum of two values
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```block
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Math.min(0, 1);
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Math.max(0, 1);
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```
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Random value
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```block
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Math.random(5);
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```
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### Comments
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[comment](/microbit/reference/comment)
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### ~
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