Answers for "take first characters of string"

how to get the first character of a string in javascript

let str = 'John Wick'
let firstChar = str.charAt(0) 
console.log(firstChar); // "J"

extract first element before a character stringr

library(stringr)

df1 <- read.table(text = "ABC|DEF|GHI, ABCD|EFG|HIJK,  ABCDE|FGHI|JKL,  
                         DEF|GHIJ|KLM, GHI|JKLM|NO|PQRS, BCDE|FGHI|JKL")
#extract 1st word before |
word(df1$V1,1,sep = "\\|")