For measuring elapsed time, a simple solution is to measure the start time and the end time of a particular code block, and report the difference. If we need a higher granularity, we do this for every single method. To do this, we use the TracePoint API in Ruby to hook into every s...
/usr/bin/ruby -e "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install)" Homebrew 是用 Ruby 开发的,因此它会修改你计算机的 Ruby 路径。curl命令从指定的 URL 中提取脚本。该脚本解释了它将要做什么,然后会暂停下来提示你确认。这给了你大量反馈,关于该脚本对你的系统将要做...
This one line of code willrecursivelylist all files in Ruby, starting from thecurrent directory: Dir.glob("**/**") Use this if you only want to search for directories: Dir.glob("**/**/") Using the Dir class it’s also possible to print thecurrent working directory: Dir.pwd Check ...
You must have seen that any code which is written between begin and end block is enough capable to handle any exception but the rescue keyword informs us with the type of exception ruby is going to handle. Ruby is capable to handle any Runtime Exceptions if they create any error in the ...
Ruby strings have many built-in methods that make it easy to modify and manipulate text, a common task in many programs. In this tutorial, you’ll use string …
In Ruby version 2.3 and below, you’d see this error message instead: strings_and_ints.rb:4:in `+': no implicit conversion of Fixnum into String (TypeError) from strings_and_ints.rb:4:in `<main>' The keywordFixnumwas the data type given to integers in previous versions of Ruby. It...
How to use russian letters in Ruby (Done!) https://code.sololearn.com/cyPhnH0CxV7O/?ref=app ruby 4th Jun 2019, 5:54 AM UraL 7ответов Сортироватьпо: Голосам Ответ + 3 We all learn, but not Solo, but with help of us 4th Jun 2019, 7...
from /home/pt/test/ptb.rb:34:in `<main>' what's the matter? Navigate:Previous Message•Next Message Options:Reply•Quote Subject Written By Posted how to use load command(in mysql) in ruby? peng tao May 03, 2010 07:35AM
~/.gem/ruby/2.7.2/gems/ffi-1.13.1/lib/ffi/types.rb:69:in`find_type': unable to resolve type 'size_t' (TypeError) The solution is simple: bundle update ffi For Rails and Jekyll projects, you might need to update bothffiandsasscat the same time: ...
In 2007, in an effort to clean up and consolidate Ruby’s syntax (as the language had evolved in the decade since Ruby 1.0’s release), the Ruby core team released Ruby 1.9.0, a version which introduced many backward incompatibilities into the language. As a result, not all Ruby ...