This feature is well established and works across many devices and browser versions. It’s been available across browsers since March 2017.
Secure context: This feature is available only in secure contexts (HTTPS), in some or all supporting browsers.
The GamepadButton.value property of the GamepadButton interface returns a double value used to represent the current state of analog buttons on many modern gamepads, such as the triggers.
The values are normalized to the range 0.0 — 1.0, with 0.0 representing a button that is not pressed, and 1.0 representing a button that is fully pressed.
let gp = navigator.getGamepads()[0];
if (gp.buttons[0].value > 0) {
// respond to analog button being pressed in
}
A double.
| Specification |
|---|
| Gamepad> # dom-gamepadbutton-value> |
| Desktop | Mobile | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Chrome | Edge | Firefox | Opera | Safari | Chrome Android | Firefox for Android | Opera Android | Safari on IOS | Samsung Internet | WebView Android | WebView on iOS | |
value |
21 | 12 | 29 | 15 | 10.1 | 25 | 32 | 14 | 10.3 | 1.5 | 4.4 | 10.3 |
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https://developer.mozilla.org/en-US/docs/Web/API/GamepadButton/value