Filter Array

rubyonrails-talk
1

hihi, can i ask if

how can i filter an Array using ruby?

i have this xml doc with these datas <a>a</a> <b>b</b> <c>c</c>

this is my code

invisibility = XPath.first( doc, "//lm:landmark" ) XPath.each( doc, "//lm:name") { |element| puts element.text } names = XPath.match( doc, "//lm:name" ) puts names

so how am i gonna filter out the <a></a>

and it jus shows me a instead of the tags too? pls i really need help urgently...

2

help me pls~~~~~~~~

im struggeling.....T.T

3

invisibility = XPath.first( doc, "//lm:landmark" ) names = XPath.each( doc, "//lm:name") { |element| puts element.text }

puts names

jus split the string is enough... how...~~~

4

invisibility = XPath.first( doc, "//lm:landmark" ) names = XPath.each( doc, "//lm:name") { |element| puts element.text }

You probably meant something like names = XPath.each ( doc, "//lm:name") { |element| names << element.text }

In your code the block does nothing apart from output the text - the return value is just the collection iterated over.

Fred

5

wow thx fred for helping me~~~ i got my things work now!!!

really appreciate ur help!!!

if u don mind can pm me ur contact so i can ask u question if i have problem??

hehe... if cant its alright~~~

cause im really new to ruby but need to start creating application using these ruby... ehhe...

anyway thx alot

6

it’s better posting on the mailing list because if someone else has a similar problem, they may google it and find it.