notEmpty

Validates that a field is not empty.

Options

Option	Type	Default	Description
trim	boolean	false	If true, trims whitespace before checking — " " becomes invalid
message	string	locale default	Custom error message

Playground

Valid values

Value	Notes
"hello"	Non-empty string
"0"	The string "0" is non-empty
" hello "	Whitespace around content

Invalid values

Value	Reason
""	Empty string
" "	Whitespace only (when trim: true)

Notes

• Unlike all other validators, notEmpty returns valid: false for empty string.
• Use with trim: true if you want to reject values that are only spaces.