What does 'qw(..)' mean? What's the use of it?when do we use it?

max1x

 Profile Answers by max1x 

• May 20th, 2006

 

used to ref the elements of an arrray.

@a = qw (1 2 3 4); vs ("1", "2", "3", "4");

loginprompt

• Jun 20th, 2006

 

qw// is a construct which quotes words delimited by spaces. use it when you have a long list of wordes that are not quoted or you just don't want to type those quotes as you type out a list of space delimited words

gnana

• Oct 31st, 2006

 

the quoting opeator for lists is qw.advantage of qw is you need not quote the strings in additional way as qw already does quoting.

wow_suraj

 Profile Answers by wow_suraj 

• Jun 8th, 2009

 

qw stands for 'Quote word'. It usually used to create array.
           Ex. @arr = qw/one two three/;
           This will create an array with elements one, two and three.

Instead of '/' symbol, any other symbol can be used.
           Ex. @arr = qw #one two three#;
                 @arr = qw %one two three%;

If using brackets as symbol, we have the option to use open and closing braces on either end.
           Ex.  @arr = qw [one two three];
           or,  @arr = qw{one two three};
           or,  @arr = qw (one two three);

Note: Each space considered as seperator for new element.