# Key

## Static Properties

* `Key.modifiers`

  The current state of the keyboard modifiers.

  * Type:
  * `Object`
  * Options:
  * `modifiers.shift: Boolean` — `true` if the shift key is pressed, `false` otherwise.
  * `modifiers.control: Boolean` — `true` if the control key is pressed, `false` otherwise.
  * `modifiers.alt: Boolean` — `true` if the alt/option key is pressed, `false` otherwise.
  * `modifiers.meta: Boolean` — `true` if the meta/windows/command key is pressed, `false` otherwise.
  * `modifiers.capsLock: Boolean` — `true` if the caps-lock key is active, `false` otherwise.
  * `modifiers.space: Boolean` — `true` if the space key is pressed, `false` otherwise.
  * `modifiers.option: Boolean` — `true` if the alt/option key is pressed, `false` otherwise. This is the same as `modifiers.alt`
  * `modifiers.command: Boolean` — `true` if the meta key is pressed on Mac, or the control key is pressed on Windows and Linux, `false` otherwise.

## Static Methods

* `Key.isDown(key)`

  Checks whether the specified key is pressed.

  * Parameters:
  * `key:` `String` — any character or special key descriptor: `‘enter’`, `‘space’`, `‘shift’`, `‘control’`, `‘alt’`, `‘meta’`, `‘caps-lock’`, `‘left’`, `‘up’`, `‘right’`, `‘down’`, `‘escape’`, `‘delete’`, …
  * Returns:
  * `Boolean` — `true` if the key is pressed, `false` otherwise

  Example:Whenever the user clicks, create a circle shaped path. If the 'a' key is pressed, fill it with red, otherwise fill it with blue:

  ```jsx
  function onMouseDown(event) {
      var path = new Path.Circle(event.point, 10);
      if (Key.isDown('a')) {
          path.fillColor = 'red';
      } else {
          path.fillColor = 'blue';
      }
  }
  ```