42 lines
1.6 KiB
Markdown
42 lines
1.6 KiB
Markdown
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# every Interval
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Run part of the program in a loop continuously at a time interval.
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```sig
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loops.everyInterval(500, function () {})
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```
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If you want to run some code continuously, but on a time interval, then use an **every** loop. You set the amount of time that the loop waits before the code inside runs again. This is similar to a [forever](/reference/basic/forever) loop, in that it runs continuously, except that there's a time interval set to wait on before the loop runs the next time. This loop is useful when you want some of a program's code run on a _schedule_.
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## Parameters
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* **interval**: a [number](/types/number) that is the amount of time in milliseconds to wait before running the loop again.
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### ~ reminder
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#### Event-based loops
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Both the **every** loop and the **forever** loop are _event-based_ loops where the code inside is run as part of a function. These are different from the [for](/blocks/loops/for) and [while](/blocks/loops/while) loops. Those are loops are part of the programming language and can have [break](/blocks/loops/break) and [continue](/blocks/loops/continue) statements in them.
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You can NOT use **break** or **continue** in either an **every** loop or a **forever** loop.
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### ~
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## Example
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At every `200` milliseconds of time, check if either the **A** or **B** button is pressed. If so, show on the screen which one is pressed.
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```blocks
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loops.everyInterval(200, function () {
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if (input.buttonIsPressed(Button.A)) {
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basic.showString("A")
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} else if (input.buttonIsPressed(Button.B)) {
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basic.showString("B")
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} else {
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basic.clearScreen()
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}
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})
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```
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## See also
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[forever](/reference/basic/forever)
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