refactor: Shared/classes.js *Breakpoints

Author: xidedix

src/Shared/classes.js

@@ -13,3 +13,9 @@ export const asideMenuCssClasses = [
   'aside-menu-lg-show',
   'aside-menu-xl-show'
 ];
+
+export const validBreakpoints = [ 'sm', 'md', 'lg', 'xl' ]
+
+export function checkBreakpoint (breakpoint, list) {
+  return list.indexOf(breakpoint) > -1
+}

src/Shared/index.js

@@ -1,3 +1,3 @@
-import { sidebarCssClasses, asideMenuCssClasses } from './classes';
+import { sidebarCssClasses, asideMenuCssClasses, validBreakpoints, checkBreakpoint } from './classes';
 
-export { sidebarCssClasses, asideMenuCssClasses };
+export { sidebarCssClasses, asideMenuCssClasses, validBreakpoints, checkBreakpoint };