CODEWITHSUNDEEP
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anemaria20
anemaria20

Reputation: 1728

Adding a directory to the END of the load path in Ruby?

Most answers I've seen on adding a directory to the load path in Ruby has been around using unshift, for eg:

$:.unshift File.dirname(__FILE__)

Can't you use push instead? Is it deliberate that most examples are using unshift vs. push when adding a directory to the load path?

Upvotes: 0

Views: 39

Answers (1)

tadman
tadman

Reputation: 211740

You can use either, but they're checked in order. unshift puts it in at the highest precedence, push as the lowest.

Normally this doesn't matter, you typically don't have duplicate module names, however if you want to override something you'll need to have your path earlier than the others. This makes unshift more desirable.

One thing to note is it's usually better to use $LOAD_PATH instead of $: so what you're doing is made more clear. Unless you're a Perl veteran you might not know off the top what $: is, and even then there's a bunch of those variables that are very similar.

Upvotes: 1

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