41 lines
963 B
Markdown
41 lines
963 B
Markdown
|
# Change Value
|
||
|
|
|
||
|
|
Set the value for local and global variables #docs #assignment #language #var #data
|
||
|
|
|
||
|
|
### @parent blocks/change-value
|
||
|
|
|
||
|
|
Change the value of a variable
|
||
|
|
|
||
|
|
```blocks
|
||
|
|
let x = 0
|
||
|
|
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:
|
||
|
|
|
||
|
|
```blocks
|
||
|
|
let x = 0
|
||
|
|
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:
|
||
|
|
|
||
|
|
```blocks
|
||
|
|
let x = 0;
|
||
|
|
x += 1;
|
||
|
|
basic.showNumber(x);
|
||
|
|
```
|
||
|
|
|
||
|
|
### Notes
|
||
|
|
|
||
|
|
* You can use the assignment operator with variables of each of the supported [types](/microbit/blocks/types).
|
||
|
|
|
||
|
|
### See also
|
||
|
|
|
||
|
|
[variable](/microbit/reference/variables/var), [types](/microbit/blocks/types)
|
||
|
|
|