export class Utils { public static uuid ( ) { var i , random ; var uuid = '' ; for ( i = 0 ; i < 32 ; i ++ ) { random = Math . random ( ) * 16 | 0 ; if ( i === 8 || i === 12 || i === 16 || i === 20 ) { uuid += '-' ; } uuid += ( i === 12 ? 4 : ( i === 16 ? ( random & 3 | 8 ) : random ) ) . toString ( 16 ) ; } return uuid ; } public static pluralize ( count , word ) { return count === 1 ? word : word + 's' ; } public static store ( namespace , data ? ) { if ( data ) { return localStorage . setItem ( namespace , JSON . stringify ( data ) ) ; } var store = localStorage . getItem ( namespace ) ; return ( store && JSON . parse ( store ) ) || [ ] ; } public static extend ( ... objs ) { var newObj = { } ; for ( var i = 0 ; i < objs . length ; i ++ ) { var obj = objs [ i ] ; for ( var key in obj ) { if ( obj . hasOwnProperty ( key ) ) { newObj [ key ] = obj [ key ] ; } } } return newObj ; } }