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General Tech QA/Testing 2 years ago
Posted on 16 Aug 2022, this text provides information on QA/Testing related to General Tech. Please note that while accuracy is prioritized, the data presented might not be entirely correct or up-to-date. This information is offered for general knowledge and informational purposes only, and should not be considered as a substitute for professional advice.
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How to check if a vector contains a given value?
Both the match() (returns the first appearance) and %in% (returns a Boolean) functions are designed for this.
match()
%in%
v <- c('a','com/tag/b">b','c','e') 'com/tag/b">b' %in% v ## returns TRUE match('com/tag/b">b',v) ## returns the first location of 'com/tag/b">b', in this com/tag/case">case: 2
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