remove elements from array in ruby

Question

I have an array and I want to remove some elements. I tried this but it doesn't work:

@restaurants.each_with_index do |restaurant, i|

if (restaurant.stars > 3)  @restaurants.slice!(i)     end

end

How can I do it?

You will find the answer below from Hck. But you could have found that easily by looking at the documentation first. — Zane
– Zane, Commented Nov 15, 2012 at 11:40

sawa · Accepted Answer · 2012-11-15 11:40:28Z

4

@restaurants.reject!{|restaurant| restaurant.stars > 3}

answered Nov 15, 2012 at 11:40

sawa

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Comments

Hck · Accepted Answer · 2012-11-15 11:33:58Z

3

You can use Array#delete_at(index): see rubydoc

But the best way for you will be to use reject! (rubydoc) or delete_if (rubydoc).

answered Nov 15, 2012 at 11:33

Hck

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toxicate20 · Accepted Answer · 2012-11-15 11:34:34Z

0

If restaurants is an array you can use pop, e.g.

a = [ "a", "b", "c", "d" ]
a.pop     #=> "d"
a.pop(2)  #=> ["b", "c"]
a         #=> ["a"]

answered Nov 15, 2012 at 11:34

toxicate20

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morri · Accepted Answer · 2012-11-15 11:42:20Z

0

@restaurants.reject! {|restaurant| restaurant.stars > 3}

answered Nov 15, 2012 at 11:42

morri

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