16.substr(); function extracts a portion of a given string.

Select one:

-True

-False

17.Comments can be made within the script, and are enclosed within "/*" and "/*" brackets.

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-True

-False

18.empty(); function returns FALSE if the variable has a non-empty and non-zero value.

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-True

-False

19.date(); function returns boolean value of date or time.

Select one:

-True

-False

20.strtoupper(); function Converts letters into uppercase letters.

Select one:

-True

-False