string and fixnum(float) concatenation....

[Jun Young Kim]

hi, forks...

see this source

irb(main):015:0> puts "%*s" % [ "1", 2 ]
TypeError: can't convert String into Integer
from (irb):15:in `%'
from (irb):15
from :0
irb(main):016:0>

AIK, "%*s" is to use for concatenation of array.

but, I met the previous error message.

What's different ways I can take?

 

[Peña, Botp]

From: Jun Young Kim [mailto:[email protected]]=20
#...
# AIK, "%*s" is to use for concatenation of array.

can you point me a link to that info?


afaik, "*" is used for field widths, eg,

p "%*s" % [2,"1"]

" 1"

p "%*s" % [2,1]

" 1"

p "%.*s" % [2,"abcdef"]

"ab"

 

[Peña, Botp]

From: Pe=F1a, Botp [mailto:[email protected]]=20
#
# afaik, "*" is used for field widths, eg,

or precisions

#=20
# > p "%*s" % [2,"1"]
# " 1"
#=20
# > p "%*s" % [2,1]
# " 1"
#=20
# > p "%.*s" % [2,"abcdef"]
# "ab"
#=20

also, if just plain concat, %s will do

puts "%s" % [["1", 2]]

12

 

[Simon Krahnke]

irb(main):015:0> puts "%*s" % [ "1", 2 ]
TypeError: can't convert String into Integer
from (irb):15:in `%'
from (irb):15
from :0
irb(main):016:0>

Maybe you meant "%*s" % [ 2, "1" ] if you expect " 1".

mfg, simon .... l

 

[Jun Young Kim]

thanks, wrong knowledge is more worse than wrong action.

2009. 02. 24, =EC=98=A4=ED=9B=84 3:52, Pe=C3=B1a, Botp =EC=9E=91=EC=84=B1:=

From: Jun Young Kim [mailto:[email protected]]
#...
# AIK, "%*s" is to use for concatenation of array.

can you point me a link to that info?


afaik, "*" is used for field widths, eg,

p "%*s" % [2,"1"]

" 1"

p "%*s" % [2,1]

" 1"

p "%.*s" % [2,"abcdef"]

"ab"

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