ruby中有沒有像java中的String的trim那樣忽略空格的方法呢,答案當然是有的,查了下ruby API和google了下!
lstrip : 去掉首空格
rstrip : 去掉尾空格
gsub : 去掉全部空格,不過要用到pattern匹配
eg:
| s1 = " Test whitespace"
s2 = " hello Ruby Rails "
s3 = "trailing "
puts s1.lstrip+s3 # show lstrip remove leading whitespace
puts s2.rstrip+s3 # show rstrip remove trail whitespace
puts s1.strip + s2.strip + s3 # show strip remove leading and trail whitespace
puts s2.gsub(/\s+/,'')
puts s2.gsub(' ','')
puts s2.gsub!(' ','')
puts s2.gsub(//,'') # four methods show remove all whitespace |
#ref : http://railsforum.com/viewtopic.php?id=15030
#ref : http://www.nabble.com/remove-all-whitespaces-in-a-string-td10835684.html#a10835684
posted on 2009-04-02 16:03
fl1429 閱讀(6327)
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