53 lines
1.2 KiB
Markdown
53 lines
1.2 KiB
Markdown
# Show Number
|
|
|
|
Show a number on the [LED screen](/device/screen), one digit at a time (scrolling from left to right)
|
|
|
|
~~~~sig
|
|
basic.showNumber(2, 150)
|
|
~~~~
|
|
|
|
### Parameters
|
|
|
|
* value - a [Number](/reference/types/number)
|
|
* (optional) interval (ms) - [Number](/reference/types/number); the time (in milliseconds) before scrolling by one LED; the larger the number, the slower the scroll
|
|
|
|
### ~
|
|
|
|
To display the number 10:
|
|
|
|
~~~~blocks
|
|
basic.showNumber(10)
|
|
~~~~
|
|
|
|
To display the number stored in the `x` variable:
|
|
|
|
~~~~blocks
|
|
let x = 1
|
|
basic.showNumber(x)
|
|
~~~~
|
|
|
|
### Example: count to 5
|
|
|
|
This example uses a [for](/reference/loops/for) loop to show numbers ``1`` through ``5`` on the screen:
|
|
|
|
~~~~blocks
|
|
for (let i = 0; i < 5; i++) {
|
|
basic.showNumber(i + 1)
|
|
basic.pause(200)
|
|
}
|
|
~~~~
|
|
|
|
### Other show functions
|
|
|
|
* use [show string](/reference/basic/show-string) to show a string on the screen
|
|
* use [show animation](/reference/basic/show-animation) to show a series of images on the screen
|
|
|
|
### Lessons
|
|
|
|
* [lucky 7](/lessons/lucky-7)
|
|
|
|
### See also
|
|
|
|
[show string](/reference/basic/show-string), [show animation](/reference/basic/show-animation), [Number](/reference/types/number), [math library](/reference/math)
|
|
|