Detect end of line or end of string with Javascript regex -


i'm trying find javascript regex detect keyword (any character) followed either new line or end of string. attempt:

.+(?:\n|$)

i'm not sure $ can used in or condition. thoughts?

update

what trying detect regex keyword follow either (1) keyword, or (2) nothing (therefore new line or end of string)

for example: string "aaa" right before new line match; string "bbb" @ end of string match well.

here go: https://regex101.com/r/tp5ev8/2

/[a-z]+$/gm

g returns multiple matches , m multi line
$ matches new line

this matches last keyword of line. here 1 matches 1 or several words separated space , ending in newline: https://regex101.com/r/zb9bs0/1 

(?:(?: |^)([a-z]+))+$

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