upload, string extensions, lgres

lib/utility/strings.d.ts

@@ -0,0 +1,4 @@
+export function nullOrEmpty(s?: string | any | null): boolean
+export function contains(s: string, key: string | any, ignoreCase?: boolean): boolean
+export function endsWith(s: string, suffix: string): boolean
+export function padStart(s: string, num: Number, char: string): boolean