[R] locate word in vector

[kevinchang]

Hey All,


I am wondering if there is a built-in function allowing us to locate a
particular word in a character vector.

ex: vector a

a
[1] "superman"  "xamn"      "spiderman" "superman"  "superman"  "xman"     
[7] "spiderman"

Is there any built-in function that can show "superman" are the first,
fourth and fifith element in "a"? Please help me out. Thanks. 


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