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��# i s - s t r i n g - u r l [ ! [ N P M ] ( h t t p s : / / n o d e i . c o / n p m / i s - s t r i n g - u r l . p n g ) ] ( h t t p : / / n p m j s . c o m / p a c k a g e / i s - s t r i n g - u r l ) # # A b o u t N P M p a c k a g e t h a t c h e c k s i f a s t r i n g i s a U R L # # D o c u m e n t a t i o n ` ` ` j s c o n s t i s S t r i n g U r l = r e q u i r e ( ' i s - s t r i n g - u r l ' ) i s S t r i n g U r l ( " h t t p s : / / d e r p y o r e o . c o m " ) / / r e t u r n s t r u e ` ` `