first?()
Instance Public methods
first? is a predicate to test the call is a first call to first? with current group.
It is useful to format comma separated values as:
1 2 3 4 5 6 7 8 9 | q.group(1, '[', ']') { xxx.each {|yyy| unless q.first? q.text ',' q.breakable end ... pretty printing yyy ... }} |
first? is obsoleted in 1.8.2.
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