50 lines
1.4 KiB
Markdown
50 lines
1.4 KiB
Markdown
# was Pressed
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Check if a button was pressed earlier.
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```sig
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brick.buttonEnter.wasPressed()
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```
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The fact that a button was pressed earlier is remembered. Once **was pressed** is used, this fact is forgotten and the result is `false` the next time you check with **was pressed** button _state_ is reset). But, if you press the button again before you check with **was pressed**, it will tell you `true`.
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## ~hint
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**Touch sensors**
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Your @boardname@ has touch sensors that work like buttons. Instead of saying `enter` or `left` as the source button, use a touch sensor block with a sensor name like `touch 1`.
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```block
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if (sensors.touch1.wasPressed()) {
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console.log("Hey, I was pressed.");
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}
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```
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Read about [touch sensors](/reference/sensors/touch-sensor) and using them as touch buttons.
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## ~
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## Returns
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* a [boolean](types/boolean): `true` if the button was pressed before, `false` if the button was not pressed before
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## Example
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Set the brick light to green if the `right` button was pressed before the `left` button. If not, the brick light is turned off when the `left` button is pressed.
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```blocks
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brick.buttonLeft.onEvent(ButtonEvent.Click, function() {
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if (brick.buttonRight.wasPressed()) {
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brick.setLight(BrickLight.Green)
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} else {
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brick.setLight(BrickLight.Off)
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}
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})
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```
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## See also
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[is pressed](/reference/brick/button/is-pressed),
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[on event](/reference/brick/button/on-event)
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[Touch sensors](/reference/sensors/touch-sensor) |