[英]Ruby - adding a directory to $LOAD_PATH - what does it do?
This is actually a question about this question: Adding a directory to $LOAD_PATH (Ruby) 这实际上是一个关于这个问题的问题: 将目录添加到$ LOAD_PATH(Ruby)
What happens when you add a directory to the $LOAD_PATH? 将目录添加到$ LOAD_PATH会发生什么? Is it like adding a script file to the execution context as in JavaScript?
是否像在JavaScript中那样将脚本文件添加到执行上下文中? (You can access global methods/objects in another files) If not, how do I call the methods of other ruby files in the current directory?
(您可以访问其他文件中的全局方法/对象)如果没有,我如何调用当前目录中其他ruby文件的方法?
When you add the /Users/you/scripts/ruby
directory to the load path, you can use: 将
/Users/you/scripts/ruby
目录添加到加载路径时,可以使用:
require 'example'
instead of: 代替:
require '/Users/you/scripts/ruby/example.rb'
Think of the $LOAD_PATH
as to being similar to the PATH
variable on a operating system. 将
$LOAD_PATH
视为与操作系统上的PATH
变量类似。 If certain directories are in the LOAD_PATH, you can just write require "some_module"
. 如果某些目录在LOAD_PATH中,您只需编写
require "some_module"
。 It's also the reason for being able to require
files from the current directory. 这也是能够
require
当前目录中的文件的原因。
By default, the LOAD_PATH no longer includes the current directory .
默认情况下,LOAD_PATH不再包含当前目录
.
having been removed in Ruby 1.9.2 . 已在Ruby 1.9.2中删除 。
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