Method _isSeparatorKey

src/material/chips/chip-input.ts:243–270

Checks whether a keycode is one of the configured separators.

(event: KeyboardEvent)

  /** Checks whether a keycode is one of the configured separators. */
  private _isSeparatorKey(event: KeyboardEvent): boolean {
    if (!this.separatorKeyCodes) {
      return false;
    }

    for (const key of this.separatorKeyCodes) {
      let keyCode: number;
      let modifiers: readonly ModifierKey[] | null;

      if (typeof key === 'number') {
        keyCode = key;
        modifiers = null;
      } else {
        keyCode = key.keyCode;
        modifiers = key.modifiers;
      }

      const modifiersMatch = !modifiers?.length
        ? !hasModifierKey(event)
        : hasModifierKey(event, ...modifiers);

      if (keyCode === event.keyCode && modifiersMatch) {
        return true;
      }
    }

    return false;
  }

  /** Gets the value to set on the `readonly` attribute. */
  protected _getReadonlyAttribute(): string | null {