doctypeKeywordCase
Control the case of “doctype” keyword in <!DOCTYPE>.
Possible options:
"ignore": Keep the case as-is."upper": Print “DOCTYPE” in upper case."lower": Print “doctype” in lower case.
Default option is "upper".
Example for "ignore"
Input:
<!DOCTYPE html>
<!doctype html>
Output:
<!DOCTYPE html>
<!doctype html>
Example for "upper"
Input:
<!DOCTYPE html>
<!doctype html>
Output:
<!DOCTYPE html>
<!DOCTYPE html>
Example for "lower"
Input:
<!DOCTYPE html>
<!doctype html>
Output:
<!doctype html>
<!doctype html>