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Peli de Halleux
2016-04-13 08:27:45 -07:00
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10
docs/reference/variables/assign.md
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@ -10,11 +10,11 @@ Set or change the value of a variable
let item = 0
````
Use the assignment operator to set or change the value of a [variable](/microbit/reference/variables/var).
Use the assignment operator to set or change the value of a [variable](/reference/variables/var).
### Declare a variable
Declare a new *local* variable using the [variable](/microbit/reference/variables/var) statement and the assignment operator. Like this:
Declare a new *local* variable using the [variable](/reference/variables/var) statement and the assignment operator. Like this:
````blocks
let num1 = 42;
@ -28,13 +28,13 @@ let num1 = 42
````
### Notes
* You can use the assignment operator with variables of each of the supported [types](/microbit/blocks/types).
* You can use the assignment operator with variables of each of the supported [types](/blocks/types).
### Lessons
[rotation animation](/microbit/lessons/rotation-animation)
[rotation animation](/lessons/rotation-animation)
### See also
[variable](/microbit/reference/variables/var), [types](/microbit/blocks/types)
[variable](/reference/variables/var), [types](/blocks/types)

8
docs/reference/variables/change-var.md
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@ -13,7 +13,7 @@ x += 1
### Declare a variable
Use the assignment operator to set the value of a [variable](/microbit/reference/variables/var). Change the value of a variable from 0 to 1 using the change item block. Like this:
Use the assignment operator to set the value of a [variable](/reference/variables/var). Change the value of a variable from 0 to 1 using the change item block. Like this:
```blocks
let x = 0
@ -22,7 +22,7 @@ x += 1
### Example
Use the assignment operator to set the value of a [variable](/microbit/reference/variables/var). Change the value of a variable from 0 to 1 using the change item block. Then display the new value of the variable on the LED screen. Like this:
Use the assignment operator to set the value of a [variable](/reference/variables/var). Change the value of a variable from 0 to 1 using the change item block. Then display the new value of the variable on the LED screen. Like this:
```blocks
let x = 0;
@ -32,9 +32,9 @@ basic.showNumber(x);
### Notes
* You can use the assignment operator with variables of each of the supported [types](/microbit/blocks/types).
* You can use the assignment operator with variables of each of the supported [types](/blocks/types).
### See also
[variable](/microbit/reference/variables/var), [types](/microbit/blocks/types)
[variable](/reference/variables/var), [types](/blocks/types)

16
docs/reference/variables/var.md
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@ -4,7 +4,7 @@ How to define and use local variables.
### @parent language
A variable is a place where you can store and retrieve data. Variables have a name, a [type](/microbit/blocks/types), and value:
A variable is a place where you can store and retrieve data. Variables have a name, a [type](/blocks/types), and value:
* *name* is how you'll refer to the variable
* *type* refers to the kind of data a variable can store
@ -12,7 +12,7 @@ A variable is a place where you can store and retrieve data. Variables have a na
### Var statement
Use the Block Editor variable statement to create a local variable and the [assignment operator](/microbit/reference/variables/assign) to store something in the variable.
Use the Block Editor variable statement to create a local variable and the [assignment operator](/reference/variables/assign) to store something in the variable.
For example, this code stores the number `2` in the `num1` variable:
@ -24,7 +24,7 @@ Here's how to define a variable in the Block Editor:
2. Change the default variable name if you like.
3. Drag a block type on the right-side of the [assignment operator](/microbit/reference/variables/assign) and click the down arrow to change the variable name.
3. Drag a block type on the right-side of the [assignment operator](/reference/variables/assign) and click the down arrow to change the variable name.
The resulting code should look something like this:
@ -44,13 +44,13 @@ The resulting code should look something like this:
![](/static/mb/blocks/var-4.png)
See [Image](/microbit/blocks/image) for info on creating and using image variables.
See [Image](/blocks/image) for info on creating and using image variables.
The resulting code should look something like this:
![](/static/mb/blocks/var-5.png)
A variable is created for the number returned by the [brightness](/microbit/reference/led/brightness) function.
A variable is created for the number returned by the [brightness](/reference/led/brightness) function.
### Using variables
@ -68,7 +68,7 @@ Variables help simplify your code. For example, instead of turning on LEDs one b
![](/static/mb/blocks/var-8.png)
You can use a variable (`i`) and a [for loop](/microbit/reference/loops/for) to plot the same series of points (`i` is incremented by 1, each time the loop repeats):
You can use a variable (`i`) and a [for loop](/reference/loops/for) to plot the same series of points (`i` is incremented by 1, each time the loop repeats):
![](/static/mb/blocks/var-9.png)
@ -84,9 +84,9 @@ Local variables exist only within the function or block of code where they're de
### Lessons
[glowing pendulum](/microbit/lessons/glowing-pendulum), [love meter](/microbit/lessons/love-meter), [temperature](/microbit/lessons/temperature), [zoomer](/microbit/lessons/zoomer)
[glowing pendulum](/lessons/glowing-pendulum), [love meter](/lessons/love-meter), [temperature](/lessons/temperature), [zoomer](/lessons/zoomer)
### See also
[types](/microbit/blocks/types), [assignment operator](/microbit/reference/variables/assign)
[types](/blocks/types), [assignment operator](/reference/variables/assign)