Câu hỏi phỏng vấn Ruby on Rails
Câu hỏi

What is the use of load and require in Ruby?

Câu trả lời

Here is an explanation of the use of load and require in Ruby:

load and require in Ruby

In Ruby, load and require are used to load external files and make their contents available to the current program. However, there are some key differences between the two:

load

  • The load method is used to load an external Ruby script file.
  • It can be used to load a file multiple times, even if it has already been loaded.
  • load is useful for loading configuration files, scripts, or other resources that may need to be reloaded during runtime.
  • The syntax is: load 'path/to/file.rb'

Example:

ruby Copy
load 'config/settings.rb'

require

  • The require method is also used to load external Ruby script files.
  • However, it will only load a file once, even if require is called multiple times with the same file path.
  • require is comm...
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