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I have two different syntax both referring to same url 

 <%= link_to 'Back', articles_path %>

<%= link_to 'My Blog', controller: 'articles' %>

What is the differences between the two approaches , which one should be use when. where is articles_path stored ?

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  • run rake routes in console and see the magic Commented Jul 17, 2014 at 5:22

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Both syntax does the same thing they will take you to /articles.

Which ones better

Since both does the same thing so it really depends on you which one to use but if you look at docs it says 1st syntax

<%= link_to 'Back', articles_path %>

is better because it's less verbose.

What is articles_path

articles_path is just a rails helper which rails creates for you when you make a route. As @nithin suggested if you run rake routes in your terminal you can see those helper methods.

If you'll use articles_url it will give you pull url like domain/articles and if you'll use articles_path then it'll give you a relative url /articles

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