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phone10(x, sep = "")
Function phone10 returns a character
vector of nchar-10.
character vector
character scalar
Function phone10 converts all US and Canada (+1) phone numbers to 10-digit.
x = c( '+1(800)275-2273', # Apple '1-888-280-4331', # Amazon '000-000-0000' ) phone10(x) phone10(x, sep = '-')
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